Sorry if these have been answered before but not much is coming up when I try to search
15A Basil's one overtly content man (7) -E-B--T
17A Shock when plea lacks energy (5) A--A-
21A March inside to start reading (6) -T---E
23A Sad breakdown development (6) SPR-A-
Spread- a breakdown is the word sad is s pre ad
Herbert - herb with overtly content
Appeal -appeal without e
Stride- in "side" the start of "to" and r for reading
Niger - regain up missing a
Ahead a he now is a.d.
Iota I line o circle leaders t of train and a of affecting