Not moving right in a cricket match (2,4)
I believe the answer is:
at rest
'not moving' is the definition.
(I've seen this before)
'right in a cricket match' is the wordplay.
'right' becomes 'r' (common abbreviation).
'in' indicates putting letters inside.
'cricket match' becomes 'test' (a test is a kind of cricket match).
'a'+'test'='atest'
'r' going within 'atest' is 'AT REST'.
(Other definitions for at rest that I've seen before include "late" , "Stationary" , "Free from trouble or anxiety" , "Not moving, free from anxiety" , "Still" .)