Physical as opposed to mental work (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
manual
'physical as opposed to mental work' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for manual that I've seen before include "Work-book" , "Physical as opposed to mental work" , "Involving human effort" , ""How-to" book" , "Book; done by hand" .)