Doctor hiding nothing - about average (8)
I believe the answer is:
mediocre
'average' is the definition.
(synonyms)
'doctor hiding nothing about' is the wordplay.
I cannot really understand how this works, but
'doctor' could be 'me' and 'me' is present in the answer.
'nothing' could be 'o' (looks like zero - 0) and 'o' is located in the answer.
'about' could be 're' ('re' means regarding or about) and 're' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for mediocre that I've seen before include "Of only average quality" , "Come ride (anag.)" , "Run-of-the-mill" , "Rather inferior" , "poor to middling" .)