Light the cigar? (6)
I believe the answer is:
corona
I believe this is a double definition.
'light' is the first definition.
(corona is a kind of light)
'the cigar?' is the second definition.
(corona is a kind of cigar)
(Other definitions for corona that I've seen before include "Glow around the sun" , "fiery halo" , "Circle of light around the sun during an eclipse" , "Circle of light; cigar" , "Crown; coloured ring" .)