Part of a word (8)
I believe the answer is:
syllable
'part of a word' is the definition.
('syllable' is part of 'word')
This is the entire clue.
(Other definitions for syllable that I've seen before include "Sounding part of a word" , "Unit of a spoken word" , "Unit of sound in word" , "Division of word" , "Section of word" .)