Male fool I have found to be huge (7)
I believe the answer is:
massive
'to be huge' is the definition.
(I've seen this in another clue)
'male fool i have' is the wordplay.
'male' becomes 'm' (common abbreviation).
'fool' becomes 'ass' (both can mean a stupid person).
'i have' becomes 'I've' (contraction of 'I have').
'm'+'ass'+'ive'='MASSIVE'
'found' acts as a link.
(Other definitions for massive that I've seen before include "Imposing in size" , "Great" , "Not wavering" , "Monolithic, huge" , "Colossal" .)