Unionist throws spade around (4,7)
I believe the answer is:
shop steward
'unionist' is the definition.
(I've seen this before)
'throws spade around' is the wordplay.
'around' is an anagram indicator.
'throws'+'spade'='throwsspade'
'throwsspade' with letters rearranged gives 'SHOP-STEWARD'.
(Other definitions for shop steward that I've seen before include "Union official" , "Workplace representative of unionised employees" , "One who's organizing hands" , "Trade union representative" , "Unionist" .)