Where a Londoner, possibly, gets a hearty kiss? (7)

I believe the answer is:

brixton

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'where a' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'londoner possibly gets a hearty kiss?' is the wordplay.
'londoner possibly' becomes 'briton' (londoner is a kind of Briton).
'gets' means one lot of letters goes inside another (gets can mean captures or absorbs).
'a hearty kiss?' becomes 'x' (I am not sure about the 'hearty' bit.).
'briton' placed around 'x' is 'BRIXTON'.

Can you help me to learn more?

(Other definitions for brixton that I've seen before include "6D 5A [TUBE STATION]" , "London community" , "14 [BOWIE] 's London birthplace" .)

I've seen this clue in the Evening Standard.

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