Charlie comes to rest on top (5)
I believe the answer is:
crest
'top' is the definition.
(crest can mean the top of a hill)
'charlie comes to rest' is the wordplay.
'charlie' becomes 'c' (phonetic alphabet).
'comes to' is a charade indicator (letters next to each other).
'c'+'rest'='CREST'
'on' acts as a link.
(Other definitions for crest that I've seen before include "Crown, peak, summit" , "Top line of a hill, mountain, or wave" , "Heraldic device representing a family" , "Head" , "Badge" .)