See Cinders transformed (7)
I believe the answer is:
discern
'see' is the definition.
(I've seen this before)
'cinders transformed' is the wordplay.
'transformed' is an anagram indicator.
'cinders' is an anagram of 'DISCERN'.
(Other definitions for discern that I've seen before include "Espy" , "Cinders (anag)" , "spot" , "See" , "Make out, distinguish by eye" .)