Clan accepting promotion for gay woman (7)

I believe the answer is:

tribade

'for gay woman' is the definition.
(rare term for a lesbian)

'clan accepting promotion' is the wordplay.
'clan' becomes 'tribe' (synonyms).
'accepting' is an insertion indicator.
'promotion' becomes 'ad' (short for advert).
'tribe' placed around 'ad' is 'TRIBADE'.

(Another definition for tribade that I've seen is " gay".)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.