Iran manoeuvred to restrict transport and peace (7)
I believe the answer is:
nirvana
'peace' is the definition.
(thesaurus)
'iran manoeuvred to restrict transport' is the wordplay.
'manoeuvred' indicates an anagram.
'to restrict' indicates putting letters inside (inserted letters are restricted or trapped).
'transport' becomes 'van' (van is a kind of transport).
'iran' is an anagram of 'nira'.
'nira' placed around 'van' is 'NIRVANA'.
'and' acts as a link.
(Other definitions for nirvana that I've seen before include "Buddhist blessed extinction" , "Buddhist heaven" , "The Buddhist's version of Paradise" , "Transcendent state - US grunge band" , "Eastern place of complete bliss" .)