Tense, nervous (4)
I believe this clue is a double definition.
'tense' is the first definition.
(similar in meaning)
'nervous' is the second definition.
(synonyms)
(Other definitions for edgy that I've seen before include "Jittery" , "Overstrung" , "Nervous and tense, irritable" , "Nervous; jumpy" , "In a tense state" .)
I believe this clue is a double definition.
'tense' is the first definition.
(on edge can mean tense or stressed)
'nervous' is the second definition.
(on edge can mean nervous or tense)
(Other definitions for on edge that I've seen before include "Tense and irritable, very nervous" , "'Tense, nervous (2,4)'" , "Tense and irritable, with nerves stretched" , "Apprehensive" , "Nervously excited" .)