A team not so posh as Palace? (5)

I believe the answer is:

villa

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

'a team' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

(Other definitions for villa that I've seen before include "See 3" , "Country house (in Aston?)" , "Classical country house" , "Type of house" , "Midlands football team" .)

I've seen this clue in the Evening Standard.

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