Be in two minds (6)
I believe the answer is:
dither
'be in two minds' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for dither that I've seen before include "State of high agitation" , "Hum and haw" , "Remain undecided" , "Hit red in order to vacillate" , "Be undecided and somewhat agitated" .)