Average doctor about to hold round (8)
I believe the answer is:
mediocre
'average' is the definition.
('mediocre' can be a synonym of 'average')
'doctor about to hold round' is the wordplay.
I cannot really understand how this works, but
'doctor' could be 'me' and 'me' is found within the answer.
'about' could be 're' (regarding) and 're' is located in the answer.
'round' could be 'o' (round can mean a round object) and 'o' is found in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for mediocre that I've seen before include "Come ride (anag.)" , "Somewhat inferior" , "Commonplace, not distinguished" , "Pedestrian, second-rate" , "Not very good" .)