A symptom of most indie slang (8)

I believe the answer is:

indicant

'a symptom' is the definition.
(thesaurus)

'most indie slang' is the wordplay.
'most' means to remove the last letter.
'slang' becomes 'cant' (synonyms).
'indie' with its last letter taken away is 'indi'.
'indi'+'cant'='INDICANT'

'of' acts as a link.

(Another definition for indicant that I've seen is " one points out".)

I've seen this clue in the Sydney Morning Herald.

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.