From beginning to end, cut crossword solutions (6)

I believe the answer is:

lights

'crossword solutions' is the definition.
(lights are the blank spaces in a crossword)

I don't understand the remainder of the clue.

(Other definitions for lights that I've seen before include "See 11" , "Chances" , "Understanding" , "Sources of illumination" , "Innards" .)

I've seen this clue in The Guardian.

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