Across
A room containing receptacles in the centre for bonsai, say (3,4)
I haven't cracked this one yet — but Times for the Times have:
A + R([recep]T[acles]FOR)M. Probably a biff for most solvers.
Researcher requiring support over in Washington (7)
I haven't cracked this one yet — but Times for the Times have:
POST + D(O)C, as in Washington D.C.
Dish seen in latter parts of trip to Hawaii (3)
European intent on travelling in California (11)
Charity concerned with carbon in waste (3,5)
I haven't cracked this one yet — but Times for the Times have:
RE + D(C)ROSS.
Mistake that's terrible (doubly so!) (3-3)
Remnants of wine found in old ewers periodically (4)
Moved a finger round pot to get cream (10)
I haven't cracked this one yet — but Times for the Times have:
Anagram of A FINGER around PAN, my LOI.
City spanning both halves of Bel Air? (3,7)
I haven't cracked this one yet — but Times for the Times have:
As found in [be]L A[ir], but also literally, since Bel Air is in the middle of Los Angeles.
Couple from India got together in retirement (4)
I haven't cracked this one yet — but Times for the Times have:
I + MET backwards, a bit of a chestnut.
Splendour of limitless wines stored by cook (6)
Smartphone programme put up for review (8)
I make gibes about Northern people, creating outrage (11)
I haven't cracked this one yet — but Times for the Times have:
I (N) DIG + NATION.
It's scary to carry on endlessly being knocked back (3)
Male poet close to female fashion designer (7)
I haven't cracked this one yet — but Times for the Times have:
M + ODIST + [femal]E.
Clearly show trade fair leads to substantially increased transactions (7)
I haven't cracked this one yet — but Times for the Times have:
EXPO + S[ubstnatially] I[ncreased] T[ransactions].
Down
Threads appear to change length (7)
They maybe drop hints, surprisingly concealing evidence of doubt (5,6)
Big vehicles getting performance awards (6)
I haven't cracked this one yet — but Times for the Times have:
O/S CARS, a chestnut if there every was one!
TV format popular among unhappy types (10)
Coat lacking a bottom stitch, perhaps (4)
How to use a stair climbing machine and look smart (4,2,2)
I haven't cracked this one yet — but Times for the Times have:
A cryptic hint, with a literal that is a bit deceptive.
Mark the highest thing you can see in measuring? (3)
I haven't cracked this one yet — but Times for the Times have:
The one over the i in measuring, that is.
Italian food unknown in the middle of Tuscany only (7)
I haven't cracked this one yet — but Times for the Times have:
[tus]C[any] AL(Z)ONE, one of my biffs.
Unpleasant quality of rotten steel basins (11)
Key trophy picked up for initiative (10)
He possibly angers working with it (5,3)
Political ideology of Liberal English paper is muted at first (7)
I haven't cracked this one yet — but Times for the Times have:
L + E + FT + IS + M[uted].
Mammal, timid and occasionally nasty, circling river (7)
I haven't cracked this one yet — but Times for the Times have:
MEE(R)K + [n]A[s]T[y].
Get ready to accept new universal union contract? (6)
I haven't cracked this one yet — but Times for the Times have:
PRE(N,U)P.
Arrived in church before twelve (4)
I haven't cracked this one yet — but Times for the Times have:
C(A.M.)E.
Some bad ideas successfully carried out (3)
Type letters or click words in the clue