Unsociable types bored by fellow citizens (9)

I believe the answer is:

londoners

I'm a little stuck... Click here to teach me more about this clue!

'citizens' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see an association between them that I don't see?

'unsociable types bored by fellow' is the wordplay.
'unsociable types' becomes 'loners' (I've seen this before).
'bored by' is an insertion indicator (to bore something can mean to drill into it).
'fellow' becomes 'don' (both can mean an academic).
'loners' enclosing 'don' is 'LONDONERS'.

Can you help me to learn more?

I've seen this clue in The Independent.

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.