Woodworking machine found in flat - Henry's (5)
I believe the answer is:
lathe
'woodworking machine' is the definition.
(I've seen this in another clue)
'in flat henry's' is the wordplay.
'in' indicates the answer is hidden within the clue.
'LATHE' is hidden in the letters of 'flat henrys'.
'found' acts as a link.
(Other definitions for lathe that I've seen before include "piece of machinery" , "Turner's tool" , "Machine for turning and shaping wood etc" , "Turning device" , "Turning implement" .)