Determine again to find the answer to (7)
I believe the answer is:
resolve
'determine' is the definition.
(I know that resolve is a type of determine)
'again to find the answer to' is the wordplay.
'again' becomes 're' (prefix meaning 'again').
'to find the answer to' becomes 'solve' (I've seen this in another clue).
're'+'solve'='RESOLVE'
(Other definitions for resolve that I've seen before include "unravel clues again?" , "12 [STIFF UPPER LIP]" , "break up" , "Decide; firm determination" , "Willpower" .)