Consequence of strike action, say: refuses to sit and work (10)
I believe the answer is:
standstill
'consequence of strike action say' is the definition.
'refuses to sit and work' is the wordplay.
'refuses to sit' becomes 'stands'.
'and' is a charade indicator (letters next to each other).
'work' becomes 'till' (tilling is a kind of working).
'stands'+'till'='STANDSTILL'
(Other definitions for standstill that I've seen before include "lack of movement" , "negation of motion" , "Perhaps jam" , "Situation without movement or activity" , "arrest" .)