Granted, it's a wicked deed by Charlie (5)
I believe the answer is:
ceded
'granted' is the definition.
('cede' can be a synonym of 'grant')
'a wicked deed by charlie' is the wordplay.
'a wicked' indicates an anagram.
'by' is a charade indicator (letters next to each other).
'charlie' becomes 'c' (phonetic alphabet: alpha, bravo, charlie etc.).
'deed' with letters rearranged gives 'eded'.
'eded' put after 'c' is 'CEDED'.
'it's' is the link.
(Other definitions for ceded that I've seen before include "Yielded, surrendered" , "Conceded or gave up" , "Gave up (power)" , "Given up" , "Granted" .)