Was it magically illuminating? (7)

I believe the answer is:

lantern

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'it magically illuminating?' is the definition.
The definition suggests a singular noun which matches the answer.

I can't explain the remainder of the clue.

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(Other definitions for lantern that I've seen before include "outside D [DECORATION]" , "Top of lighthouse" , "Type of lamp" , "It illuminates" , "Light-admitting structure on roof" .)

I've seen this clue in the Evening Standard.

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