Land of fire (5)
I believe the answer is:
light
I believe this clue is a double definition.
'land' is the first definition.
(light can mean to settle or land)
'fire' is the second definition.
(thesaurus)
'of' acts as a link.
(Other definitions for light that I've seen before include "What smoker may be requesting" , "Easy to digest; flame" , "Illuminate or ignite" , "solution to clue" , "Delicate; illuminate" .)