Tolerate resistance (5)
I believe the answer is:
stand
This clue is a double definition.
'tolerate' is the first definition.
(I know that tolerate can be written as stand)
'resistance' is the second definition.
(I've seen this before)
(Other definitions for stand that I've seen before include "partnership" , "Watch and do nothing to help" , "Support" , "Decline to interfere when one should?" , "Raised platform; tolerate" .)