Crossword Genius

Standard illumination? (4)

Ross

I believe the answer is:

lamp

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This clue could be a double definition.

'standard' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

'illumination?' is the second definition.

Can you help me to learn more?

(Other definitions for lamp that I've seen before include "Artificial source of illumination" , "punch" , "Florence Nightingale was the Lady with the . . . ." , "This could be standard" , "Source of light, usually portable" .)

I've seen this clue in the Evening Standard.
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