Keep place and don't move (4,3)
I believe the answer is:
stay put
'don't move' is the definition.
(I've seen this in another clue)
'keep place' is the wordplay.
'keep' becomes 'stay' (I've seen this in another clue).
'place' becomes 'put' (synonyms).
'stay'+'put'='STAY PUT'
'and' acts as a link.
(Other definitions for stay put that I've seen before include "Remain unmoving" , "Remain in one place" , "Informally, don't move - remain in situ" , "Remain in place, don't move" , "Stick around" .)