Clothing for baseball umpire enforcedly exhibits a distinguishing feature (4,4)

I believe the answer is:

blue eyes

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'enforcedly exhibits a distinguishing feature' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'clothing for baseball umpire' is the wordplay.
'clothing' becomes 'blue' (blue is a kind of clothing).
'for' is a charade indicator (letters next to each other).
'baseball umpire' becomes 'eyes' (I can't justify this - if you can you should give a lot more credence to this answer).
'blue'+'eyes'='BLUE EYES'

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I've seen this clue in The Independent.

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