Fool who will, given time, get sense (4)
I believe the answer is:
twit
'fool who will' is the definition.
'twit' can be an answer for 'fool' (I've seen this before). I'm not sure about the remainder of the definition.
'time get sense' is the wordplay.
'time' becomes 't'.
'get' is a charade indicator (letters next to each other).
'sense' becomes 'wit' (I have seen 'Good sense' mean 'wit' so perhaps 'sense' could also mean 'wit').
't'+'wit'='TWIT'
'given' acts as a link.
Can you help me to learn more?
(Other definitions for twit that I've seen before include "Silly fool" , "Bait - fool" , "Taunt; fool" , "Silly person (colloq.)" , "Tease - fool" .)