Worth turning into a pitch (5)
I believe the answer is:
throw
'a pitch' is the definition.
(I know this)
'worth turning' is the wordplay.
'turning' is an anagram indicator.
'worth' anagrammed gives 'THROW'.
'into' acts as a link.
(Other definitions for throw that I've seen before include "Make a pot" , "Hurl, fling" , "Toss" , "puzzle" , "Cast; give (party)" .)