Neck shown by lawyer taking on charitable event (5)

I believe the answer is:

scrag

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

'neck' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

(Other definitions for scrag that I've seen before include "End of neck - beat up" , "Bony part of the neck" , "Collar" , "The inferior end of a neck of mutton" , "Poor quality meat - throttle" .)

I've seen this clue in The Irish Times.

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