Does mate with one resist? (4)
I believe the answer is:
buck
'one resist?' is the definition.
(thesaurus)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for buck that I've seen before include "may stop here and > be passed" , "A slangy American dollar, may be fast" , "Male deer; (pass the) responsibility" , "Jump - dollar - male deer" , "Male - resist" .)