Mean, medium (7)
I believe the answer is:
average
I believe this clue is a double definition.
'mean' is the first definition.
(I know that mean can be written as average)
'medium' is the second definition.
(I know that medium can be written as average)
(Other definitions for average that I've seen before include "Mean - typical" , "Arithmetical mean" , "representative figure?" , "just like any other" , "Of no exceptional quality or ability" .)