Benefit from a foul throw (5)
I believe the answer is:
worth
'benefit' is the definition.
(thesaurus)
'a foul throw' is the wordplay.
'a foul' indicates anagramming the letters.
'throw' is an anagram of 'WORTH'.
'from' acts as a link.
(Other definitions for worth that I've seen before include "Throw (anag.)" , "Value (of something)" , "Merit - value" .)