Daisy, or what might be studying her? (5)

I believe the answer is:

oxeye

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'daisy' is the definition.
(I've seen this before)

I don't understand the remainder of the clue.

(Other definitions for oxeye that I've seen before include "A daisy, the marguerite" , "Flower; _ daisy" , "Kind of daisy" , "Type of daisy" , "Plant with daisy-like flowers" .)

I've seen this clue in The Independent.

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