Share some of driver's licence (5)
I believe the answer is:
slice
'share' is the definition.
(I know that slice is a type of share)
'some of driver's licence' is the wordplay.
'some of' indicates a hidden word.
'SLICE' is hidden in the letters of 'drivers licence'.
(Other definitions for slice that I've seen before include "Spin" , "Wedge" , "Helping (of cake, roast meat)" , "shot in golf that goes astray" , "Portion of pizza" .)