Nurse felt funny taking ill (9)
I believe the answer is:
resentful
'taking ill' is the definition.
(I've seen this before)
'nurse felt funny' is the wordplay.
'funny' indicates an anagram.
'nurse'+'felt'='nursefelt'
'nursefelt' is an anagram of 'RESENTFUL'.
(Other definitions for resentful that I've seen before include "Bearing a grudge" , "Bitter" , "Grudging" , "Feeling badly treated" , "Feeling bitterness" .)