Average; miserly (4)
I believe the answer is:
mean
I believe this clue is a double definition.
'average' is the first definition.
(type of average)
'miserly' is the second definition.
(I know that miserly can be written as mean)
(Other definitions for mean that I've seen before include "Intend; stingy" , "intimate" , "Name for being tight-fisted" , "Norm" , "Aim - low - average" .)