Full figure for one clad in Italian outfit (7)
I believe the answer is:
integer
'full figure' is the definition.
(a whole number)
'for one clad in italian outfit' is the wordplay.
'for one' becomes 'eg' (both can mean 'for example').
'clad in' means one lot of letters goes inside another.
'italian outfit' becomes 'Inter' (short for Inter Milan, Italian football team).
'eg' going inside 'inter' is 'INTEGER'.
(Other definitions for integer that I've seen before include "The whole thing" , "One for example" , "Treeing (anag.)" , "Positive or negative whole number" , "Get Erin (anag)" .)