With it actor spread a soft cheese (7)
I believe the answer is:
ricotta
'a soft cheese' is the definition.
(I've seen this before)
'with it actor spread' is the wordplay.
'with' is a charade indicator (letters next to each other).
'spread' indicates anagramming the letters.
'it' next to 'actor' is 'itactor'.
'itactor' is an anagram of 'RICOTTA'.
(Other definitions for ricotta that I've seen before include "cheese found" , "one brought on board?" , "Italian 8 across" , "may come from Italian press?" , "may be served with biscuits" .)