Unhappy or distressed (5)
I believe the answer is:
upset
I believe this clue is a double definition.
'unhappy' is the first definition.
(I've seen this before)
'distressed' is the second definition.
(I know that distressed can be written as upset)
(Other definitions for upset that I've seen before include "Disturbed or overturned" , "Perturbed - unexpected defeat" , "Caused grief" , "Disturb - spoil" , "dismay" .)