Miser exchanged peach and sports equipment (10)
I believe the answer is:
cheapskate
'miser' is the definition.
(cheapskate is a kind of miser)
'exchanged peach and sports equipment' is the wordplay.
'exchanged' is an anagram indicator.
'and' means one lot of letters go next to another.
'sports equipment' becomes 'skate' (skate is a kind of sports equipment).
'peach' is an anagram of 'cheap'.
'cheap'+'skate'='CHEAPSKATE'
(Other definitions for cheapskate that I've seen before include "he won't pay the going rate" , "ungenerous person" , "Miserly type" , "Miserly person" , "Ungenerous type" .)