Perfect finish from Szczecin? (6)
I believe the answer is:
polish
'perfect' is the definition.
(polishing is a kind of perfecting)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for polish that I've seen before include "Beeswax, for example" , "Rub - refinement" , "Shine with soft cloth, say silverware" , "tongue" , "Europeans" .)