Really need help this week...
21a- No setting forth HO arranged? Completely the opposite (7,2,3,4 letters)
26a- Tooth piece about to be returned (5)
--t--
30a- Put aside on ledges endlessly (6)
---l--
25d Forty ,say , be superior(5 )
----l
23d- A strain, one with a lack of coordination (6)
-----a
TIA to all !