Piece of work, not typically difficult (6)
I believe the answer is:
knotty
'difficult' is the definition.
('knotty' can be similar in meaning to 'difficult')
'piece of work not typically' is the wordplay.
'piece of' says the answer is hidden in the clue.
'KNOTTY' is hidden within 'work not typically'.
(Other definitions for knotty that I've seen before include "Convoluted" , "Describing a difficult problem" , "Complex - hard to solve" , "Difficult (like wood hard to chop through?)" , "Pinewood can be" .)