Team at sea against east Cheshire town (5)
I believe the answer is:
crewe
'cheshire town' is the definition.
(I've seen this before)
'team at sea against east' is the wordplay.
I cannot quite see how this works, but
'team' could be 'crew' (crew is a kind of team) and 'crew' is found within the answer.
'east' could be 'e' (abbreviation) and 'e' is found in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for crewe that I've seen before include "Cheshire rail junction" , "railway junction" , "Cheshire town of railway fame" , "Famous railway town" , "Ace wanderer lax (anag)" .)