Apprehensive, edgy (6)
I believe the answer is:
uneasy
I believe this clue is a double definition.
'apprehensive' is the first definition.
(synonyms)
'edgy' is the second definition.
(synonyms)
(Other definitions for uneasy that I've seen before include "Anxious, uncomfortable" , "Awkward" , "'Nervous, unsettled (6)'" , "Anxious, unquiet" , "Tense, edgy" .)