Shining with desire: ours is amazing (8)
I believe the answer is:
lustrous
'shining' is the definition.
(thesaurus)
'with desire ours is amazing' is the wordplay.
'with' is an insertion indicator.
'desire' becomes 'lust' (lust is a kind of desire**).
'is amazing' indicates anagramming the letters.
'ours' is an anagram of 'rous'.
'lust' put into 'rous' is 'LUSTROUS'.
(Other definitions for lustrous that I've seen before include "Glossy, shiny" , "Gleaming" , "Glowing gently" , "Shining" , "Softly glowing" .)