Across
Diving bird endlessly showing signs of breathlessness (6)
More sprightly junior inspiring the BBC (8)
Fascinating procedure for joining metal plates together (8)
Change tack fast, initially willing to wait outside (6)
I haven't cracked this one yet — but Times for the Times have:
W[illing] in SERVE
Difficult situation unknown in production of Times (6)
Badly regarded at first, but collecting tithes regularly (8)
I haven't cracked this one yet — but Times for the Times have:
R[egarded] T[i]T[h]E[s] in ONLY (but); ONLY = but as in ‘Talk to granpa; only don’t give him a lollipop.’
Wearing glasses, run in to manage light-splitting instrument (12)
I haven't cracked this one yet — but Times for the Times have:
R in TO (‘run in to’) in SPECS (wearing glasses) COPE (manage)
Singer's forthright statements initially popular at Academy (5,7)
I haven't cracked this one yet — but Times for the Times have:
FRANK (forthright) S[tatements] IN (popular) AT RA (Royal Academy, London)
Beetle Scottish landowner catches returning by day (8)
Modern decree keeping first of these unimpaired (6)
I haven't cracked this one yet — but Times for the Times have:
T[hese] in IN (modern) ACT (decree)
Retired artist's payoff, perhaps (6)
Fearless traveller in current books and papers (8)
Wander aimlessly, having unusual gravitas (8)
Down-and-out, one omitted from file (6)
Down
Presence of posh bishop that is extremely timely (6)
I haven't cracked this one yet — but Times for the Times have:
U (posh) B (bishop) IE (id est > that is) T[imel]Y; ‘the condition of being in a particular place’ (Latin ubi will help many people). How to present weird words, IMHO.
Loose woman disturbed by offspring's secret practices (11)
I haven't cracked this one yet — but Times for the Times have:
FREE (loose) SON in MARY
Quiet islands head of Eton enters of all people! (9)
I haven't cracked this one yet — but Times for the Times have:
IS (islands) E[ton] in NO LESS (of all people!)
Remind leftist to take gentle exercise (3-4)
Discombobulate the riding fraternity? (5)
Draw a native of Chiengmai, possibly, mentioned in speech (3)
Wrapper girl quietly sent off, containing verse (8)
She casts a spell in French song about ship (11)
Old union leader, teased and got the better of (9)
I haven't cracked this one yet — but Times for the Times have:
O (old) U[nion] TWITTED (old word for teased)
Weapon made by millions, the last word in creative skill (8)
I haven't cracked this one yet — but Times for the Times have:
M (millions) AMEN (the last word of the Bible) in ART
Dropping off, like a casual acquaintance (7)
I haven't cracked this one yet — but Times for the Times have:
dropping off as in falling asleep; a ‘nodding’ acquaintance is a slight one
One writing school essay originally without illicit aid (6)
I haven't cracked this one yet — but Times for the Times have:
CRIB (illicit aid) in S[chool] E[ssay]
Fashionable medic meeting by a Hindu god (5)
Woman in commercial area, a US prosecutor (3)
Type letters or click words in the clue