Hypocrite pitches right into greedy guts (4)
I believe the answer is:
prig
'hypocrite' is the definition.
(a prig is a hypocritical or self-righteous person)
'right into greedy guts' is the wordplay.
'right' becomes 'r' (common abbreviation).
'into' indicates putting letters inside.
'greedy guts' becomes 'pig' (both can mean a greedy person).
'r' going into 'pig' is 'PRIG'.
'pitches' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
(Other definitions for prig that I've seen before include "Smug type" , "Excessively moralistic person" , "Sanctimonious person" , "Self-righteous hypocrite" , "Prude" .)