Can't stand (4)
I believe the answer is:
hate
'can't stand' is the definition.
(if you hate something you can't stand it)
This is all the clue.
(Other definitions for hate that I've seen before include "Extreme dislike" , "Passionately dislike" , "Intense emotion opposite to love" , "Thoroughly dislike, loathe" , "Odium" .)