Demand for miners after a strike (5)
I believe the answer is:
claim
'demand for' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for claim that I've seen before include "Allegation" , "Formal request" , "Right; demand this" , "Assert; demand" , "Assertion; demand" .)