Stupid woman got married (3)
I believe the answer is:
dim
'stupid' is the definition.
(similar in meaning)
'woman got married' is the wordplay.
'woman' becomes 'di' (short for Diana).
'got' is a charade indicator (letters next to each other).
'married' becomes 'm'.
'di'+'m'='DIM'
(Other definitions for dim that I've seen before include "Not bright, cloudy" , "out of mind?" , "Lose brightness" , "Obscure, not bright" , "Unpromising" .)