Crossword Genius

Polish leader of uhlans travelling by train (8)

Ross

I believe the answer is:

urbanity

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'polish' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe there's an association between them I don't understand?

'leader of uhlans travelling by train' is the wordplay.
'leader of' suggests taking the first letters.
'travelling' indicates anagramming the letters.
The initial letter of 'uhlans' is 'u'.
'by'+'train'='bytrain'
'bytrain' anagrammed gives 'rbanity'.
'u'+'rbanity'='URBANITY'

Can you help me to learn more?

(Other definitions for urbanity that I've seen before include "Elegance and sophistication - of city dweller?" , "Elegance or sophistication in appearance" , "showing sophistication" , "Refined quality - but rainy (anag)" , "Suave nature" .)

I've seen this clue in The Times.
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