Skittish about gear (3)
I believe the answer is:
kit
'gear' is the definition.
(I know that kit is a type of gear)
'skittish about' is the wordplay.
'about' indicates a hidden word (the clue goes around or about the answer).
'KIT' is hidden within 'skittish'.
(Other definitions for kit that I've seen before include "In strip" , "Marlowe" , "Set of equipment, perhaps for first-aid" , "Football top, shorts, stockings and boots?" , "Stuff" .)