Odd lustre is consequence (6)
I believe the answer is:
result
'is consequence' is the definition.
(I've seen this in another clue)
'odd lustre' is the wordplay.
'odd' is an anagram indicator.
'lustre' is an anagram of 'RESULT'.
(Other definitions for result that I've seen before include "Final score" , "Consequence in Ulster (6)" , "Effect of lustre" , "Final outcome" , "Rustle (anag.)" .)