Reportedly see spouse getting fat... (6)
I believe the answer is:
chubby
'fat' is the definition.
(similar in meaning)
'reportedly see spouse' is the wordplay.
'reportedly' shows a homophone (sound like).
'spouse' becomes 'hubby' (hubby is a kind of spouse).
'see' sounds like 'c'.
'c'+'hubby'='CHUBBY'
'getting' is the link.
(Other definitions for chubby that I've seen before include "Roundly plump" , "Fat in the face" , "Overweight" , "Podgy" , "Round and pleasantly plump" .)