European province involved in strike (6)
I believe the answer is:
danish
'european' is the definition.
(from Denmark)
'province involved in strike' is the wordplay.
'province' becomes 'NI' (short for Northern Ireland, a province of the UK).
'involved in' indicates putting letters inside.
'strike' becomes 'dash' (both can mean to hit or beat).
'ni' inserted within 'dash' is 'DANISH'.
(Other definitions for danish that I've seen before include "Relating to Denmark" , "Scandinavian, pastry perhaps" , "Popular piece of pastry" , "Had sin (anag)" , "European language" .)