Farm attendant fixed soil, removing nitrogen? (6,3)
I believe the answer is:
stable lad
'soil removing nitrogen?' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'farm attendant fixed' is the wordplay.
I cannot really understand how this works, but
'fixed' could be 'stable' (both can mean solid) and 'stable' is found in the answer.
The remaining letters 'lad' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for stable lad that I've seen before include "Boy tending horses" , "One working with string" , "Would-be jockey" , "Young worker with horses" , "Groom" .)