In bed I'm itchy, turning scared (5)
I believe the answer is:
timid
'scared' is the definition.
(thesaurus)
'in bed i'm itchy turning' is the wordplay.
'in' indicates the answer is hidden within the clue.
'turning' says the letters should be written backwards.
'dimit' can be found hidden inside 'bed im itchy'.
'dimit' backwards is 'TIMID'.
(Other definitions for timid that I've seen before include "Easily scared" , "Not assertive, retiring" , "Apprehensive and unassertive" , "Diffident, faint-hearted" , "doormat" .)