It gives the lawyer something to do (4)

I believe the answer is:

deed

I'm a little stuck... Click here to teach me more about this clue!

'something to do' is the definition.
(I've seen this in another clue)

I can't explain the remainder of the clue.

(Other definitions for deed that I've seen before include "Heroic exploit" , "Legal document for transfer of property" , "What's done" , "Something done" , "Action - legal document" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app