Digs suit (6)
I believe the answer is:
spades
I believe this clue is a double definition.
'digs' is the first definition.
(spading is a kind of digging)
'suit' is the second definition.
(I've seen this before)
(Other definitions for spades that I've seen before include "Digging implements" , "Digging tools and card suit" , "Does some groundwork" , "dark suit" , "Garden tools and card suit" .)