Crossword Genius

In Greater London, the place for hotheaded 'yes' voters (5)

Ross

I believe the answer is:

hayes

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

'in greater london' is the definition.
The definition suggests a singular noun which matches the answer.

'place for hotheaded yes voters' is the wordplay.
I cannot quite understand how this works, but
'yes' could be 'aye' ('aye' means 'yes') and 'aye' is found within the answer.
This explanation may well be incorrect...

'the' is the link.

Can you help me to learn more?

(Other definitions for hayes that I've seen before include "Former US President" , "Location in Middlesex" , "West London town; ah, yes (anag.)" , "Place in Middlesex" , "Part of Hillingdon" .)

I've seen this clue in the Evening Standard.
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