Raise charge after a year (6)
I believe the answer is:
parent
'raise' is the definition.
(synonyms)
'charge after a year' is the wordplay.
'charge' becomes 'rent' (I've seen this in other clues).
'after' means one lot of letters go next to another.
'a year' becomes 'pa' (per annum).
'rent' after 'pa' is 'PARENT'.
(Other definitions for parent that I've seen before include "Raise" , "Rear" , "old man?" , "Pa or Ma" , "One with children" .)