Crossword Genius

I share in light meal comprising two elements (9)

Ross

I believe the answer is:

bipartite

'comprising two elements' is the definition.
(bipartite means having two parts)

'i share in light meal' is the wordplay.
'share' becomes 'part' (synonyms).
'in' is an insertion indicator.
'light meal' becomes 'bite' (I've seen this before).
'i'+'part'='ipart'
'ipart' placed inside 'bite' is 'BIPARTITE'.

(Another definition for bipartite that I've seen is " Involving two sides".)

I've seen this clue in The Times.
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