Play Acronyms.

Youthfulness often undermines the huge financial undercurrents lurking nearby, endangering spending SUSTAINABILITY

Sustainability unlimited steadfast trading achieved infinitely
nowadays, all boundless instantaneous landing
indelible testimonies (by) YOKEFELLOWS

Yolkfellows, old lovers, kinsman, friends expect lasting loyalty, openhearted warmth, selflessness

Sending everyone letters from Latvia, especially step son; not excepting Simon's sister

CORRESPONDENCE

Sorry Panache I seem to have my yolk/yoke's slightly mixed up

Take Two...

Yokefellows, old kinsmen, esteemed friends expect lasting loyalty, openhearted warmth,selflessness

Chewbacca's
CORRESPONDENCE

Take three if need`s be Cherrytree......after all I do have to use too many difficult Y`s.......as that is what is given me!!!
Welcome Chewbacca lovely having you join us though you have the first half right.......please note the LAST letter of your sentence then is the main word written in capitals for the next player to use.........in your case it would be SISTER.

I shall use Sister before going on to Cherrytree`s word SELFLESSNESS

Sister infant, sibling,teenager even relative.

Selflessness extroverted, liberal forgiving,likely exquisite,such sensitivity nice earthly - subtly SELF-SACRIFICING

Self-sacrificing egos long for some anxious customers, rightly informing friends, indicating cautiousness in necessary GREGARIOUSNESS

Gregariousness relaxedly effervescent,genial and readily intimate openly unconstrained,so normally expansively sociable, (a) SWEETHEART

'Sweetheart' wishing earnest everlasting
trust, hearts entwined, adoration (&) romance Time-honored

Time-honoured immortal maybe esteemed, historic often noble,orthodox under-stated readily established DOCTRINAL

Doctrinal obsolete contracts, traditionally read in national archives Libraries

Libraries informative book repository,all references institute,
Establishment (for) SEMINARIES

Seminaries engage minds, increasing noble attainments regularly in energetic SPONTANEOUSNESS

Spontaneousness pleasant obligatory naively take, addressing nervousness especially,overwrought, unrehearsed, sentimental naturally - expediant sincere SPUR-OF -THE-MOMENT

Spur-of-the-moment possible unpremeditated risks - often financial- temptation has effect - misappropriation of monies, embezzlement notably Taken-to -the- cleaners

Taken-to-the-cleaners a kind (of) extortion notably tricking,overcharging then hoodwinking expected,cheating likely extracting,arm-twisting neatly engaged -ruefully
SKULLDUGGERY

Skullduggery keeps us looking lively, dodging undue goings-on, gaining energetic rougues YOBBISM

Yobbism original bully boys, ill-mannered squalid
MALADROIT

Maladroit, a lumbering awkwardness, dispraxia requiring occupational (needs) Therapist

Therapist healing examination, reviewing, advising proper
investigative specialist TREATMENTS

Treatments rarely ensure all tension manipulation endures , negatively trusting SPECIALISTS

Specialists professional experts,Consultants invariably advise, (are)licensed informed,skillfully trained,
SOPHISTICATED