Crossword Genius

Look - alloy has no little weight (4)

Ross

I believe the answer is:

peer

'look' is the definition.
(peering is a kind of looking)

I don't understand how the remainder of the clue works.

(Other definitions for peer that I've seen before include "Struggle to look" , "Peep; nobleman" , "one visiting ladies, say?" , "One entitled" , "Gaze" .)

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