Check condition and put back (9)
I believe the answer is:
reinstate
'put back' is the definition.
(to reinstate is to return or restore)
'check condition' is the wordplay.
'check' becomes 'rein' (both can mean to control or limit).
'condition' becomes 'state' (the state something is in).
'rein'+'state'='REINSTATE'
'and' is the link.
(Other definitions for reinstate that I've seen before include "Re-establish" , "Bring back" , "Restore to a former position" , "Put back into office" , "Put back in position" .)