Fellow recruited two learners for channel (5)
I believe the answer is:
gully
'for channel' is the definition.
(gully is a kind of channel)
'fellow recruited two learners' is the wordplay.
I cannot quite see how this works, but
'learners' could be 'll' (L-plates are seen on learner drivers' cars) and 'll' is found within the answer.
'fellow' could be 'guy' (both can mean a man) and 'guy' is found within the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for gully that I've seen before include "Water-course" , "Fielding position -- narrow channel" , "Gutter, drain" , "Deep ditch" , "In field, position" .)