Wife no longer referred to as aroused (7)
I believe the answer is:
excited
'aroused' is the definition.
(I know that aroused can be written as excited)
'wife no longer referred to' is the wordplay.
'wife no longer' becomes 'ex' (ex-wife).
'referred to' becomes 'cited' ('cite' can be a synonym of 'refer to').
'ex'+'cited'='EXCITED'
'as' is the link.
(Other definitions for excited that I've seen before include "Roused by strong emotion" , "Aroused, enthused" , "Animated" , "Worked up" , "in a state of agitation" .)