Acceptable batting arrangement (2,5)
I believe the answer is:
in order
'acceptable' is the definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
'batting arrangement' is the wordplay.
'batting' becomes 'in' (as in batting or being 'in' in cricket).
'arrangement' becomes 'order' (order is a kind of arrangement).
'in'+'order'='IN ORDER'
Can you help me to learn more?
(Other definitions for in order that I've seen before include "place for monk?" , "Present and correct" , "OK?" , "Brothers and sisters are" , "As expected" .)