Easily alarmed (5)
'easily alarmed' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for nervous that I've seen before include "Highly-strung" , "Jumpy" , "Frightened" , "Easily alarmed" , "Stirred" .)
'easily alarmed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for timid that I've seen before include "afraid to speak out?" , "Not brave" , "Easily frightened" , "Gutless" , "Not assertive, retiring" .)