Eat this in Kentish Town? (8)

I believe the answer is:

sandwich

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'town?' is the definition.
(I have seen 'seaside town' mean 'sandwich' so perhaps 'town' could also mean 'sandwich')

I don't understand the rest of the clue.

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(Other definitions for sandwich that I've seen before include "Squeeze (between)" , "Double-decker, perhaps" , "Snack - town in Kent" , "Snack - place in Kent" , "See 14" .)

I've seen this clue in The Sun.

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