Restless, went out without cape (7)
I believe the answer is:
excited
'restless' is the definition.
(thesaurus)
'went out without cape' is the wordplay.
'went out' becomes 'exited' ('exit' can be a synonym of 'go out').
'without' indicates putting letters inside ('without' can be similar in meaning to 'outside').
'cape' becomes 'c' (abbreviation used on maps).
'exited' placed around 'c' is 'EXCITED'.
(Other definitions for excited that I've seen before include "Worked up" , "in a state of agitation" , "in agitated state" , "With feelings roused, emotionally high" , "Aroused, enthused" .)