Hates having to change in a hurry (5)
I believe the answer is:
haste
'in a hurry' is the definition.
(I've seen this before)
'hates having to change' is the wordplay.
'having to change' is an anagram indicator (I've seen 'has to change' mean this).
'hates' with letters rearranged gives 'HASTE'.
(Other definitions for haste that I've seen before include "Overly eager speed" , "Urgent hurry" , "Possible cause of careless mistakes?" , "velocity" , "impetuosity" .)