I retain curious resistance to change (7)
I believe the answer is:
inertia
'resistance to change' is the definition.
(I've seen this before)
'i retain curious' is the wordplay.
'curious' indicates anagramming the letters.
'retain' with letters rearranged gives 'nertia'.
'i'+'nertia'='INERTIA'
(Other definitions for inertia that I've seen before include "Disinclination to act" , "Slowness to take action, state of laziness" , "Slowness to react" , "Change-resisting tendency" , "Resistance to movement" .)