Flight of criminal pair and escape (13)
I believe the answer is:
disappearance
'flight' is the definition.
(thesaurus)
'criminal pair and escape' is the wordplay.
'criminal' indicates anagramming the letters.
'pair'+'and'+'escape'='pairandescape'
'pairandescape' anagrammed gives 'DISAPPEARANCE'.
'of' is the link.
(Other definitions for disappearance that I've seen before include "fading" , "Exit (maybe into thin air)" , "getaway" , "Departure from view" , "Vanishing act" .)