Weston-super-Mare, such a mean place? (3-5,4)

'place?' is the definition.
(I have seen 'Poor place' mean 'one horse town' so perhaps 'place' could also mean 'one horse town')

'weston-super-mare such a' is the wordplay.
I cannot really understand how this works, but
an anagram of 'weston' is 'setown' which is present in the answer.
'a' could be 'one' and 'one' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

'mean' acts as a link.