Restricted, criminal laid into criminal (11)
I believe the answer is:
conditional
'restricted' is the definition.
(thesaurus)
'criminal laid into criminal' is the wordplay.
'criminal' becomes 'con' (abbreviation for 'convict').
'criminal' indicates an anagram.
'laid'+'into'='laidinto'
'laidinto' is an anagram of 'ditional'.
'con'+'ditional'='CONDITIONAL'
(Other definitions for conditional that I've seen before include "having reservations" , "Tense" , "Dependent" , "qualification" , "With strings attached" .)