Omit in pronunciation (5)
I believe the answer is:
elide
'omit in pronunciation' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for elide that I've seen before include "Omit (syllable) in speech" , "Omit part of word" , "Suppress - abridge" , "Omit (a sound or syllable) when speaking" , "Rebut forgotten" .)