Keyed up (5)
There are a few possibilities for this:
on edge
'keyed up' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tense that I've seen before include "Charged" , "Under emotional strain" , "Taut, strained" , "Strained - form of verb" , "past, say" .)
'keyed up' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hyper that I've seen before include "Prefix meaning excessively, perhaps active" , "Prefix meaning 'Excessive'" , "Unable to sit still" , "publicist" , "Really excited" .)
(Other definitions for antsy that I've seen before include "nervous" , "excited?" , "Eager" .)
'keyed up' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for on edge that I've seen before include "stressed" , "'Tense, nervous (2,4)'" , "Anxious, nervy" , "Nervy, tense and irritable" , "Cliff-top walker may be" .)