Staying helpful, elder badly provoked again (9)
I believe the answer is:
rekindled
'provoked again' is the definition.
('kindled' can be a synonym for 'provoked' so perhaps 'rekindled' is OK for 'provoked again')
'staying helpful elder badly' is the wordplay.
'staying' is an insertion indicator (stay could historically mean to imprison).
'helpful' becomes 'kind' ('kind' can be similar in meaning to 'helpful').
'badly' indicates anagramming the letters.
'elder' anagrammed gives 'reled'.
'kind' placed within 'reled' is 'REKINDLED'.
(Other definitions for rekindled that I've seen before include "Aroused (of former interests)" , "Invigorated" , "Revived" , "Fired over" .)