Clear the bed, giving doctor advantage (6)
I believe the answer is:
'clear the bed' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'giving doctor advantage' is the wordplay.
'giving' is a charade indicator (letters next to each other).
'doctor' becomes 'Dr' (abbreviation).
'advantage' becomes 'edge' (having the edge is having an advantage).
'dr'+'edge' is 'DREDGE'.
Can you help me to learn more?
(Other definitions for dredge that I've seen before include "Sort of collector" , "Clear (riverbed)" , "Drag up" , "Dig up mud from river or canal bed" , "Deepen a waterway" .)