Hustling to provide natural illumination (8)

I believe the answer is:

sunlight

I'm a little stuck... Click here to teach me more about this clue!

'natural illumination' is the definition.
'sunlight' can be an answer for 'illumination' (I have seen 'Solar illumination ' mean 'sunlight' so perhaps 'illumination' could also mean 'sunlight'). I am not sure about the 'natural' bit.

'hustling to provide' is the wordplay.
'to provide' is an anagram indicator.
'hustling' is an anagram of 'SUNLIGHT'.

Can you help me to learn more?

(Other definitions for sunlight that I've seen before include "What's illuminating, naturally" , "Ray" , "Prerequisite for photosynthesis" , "Solar illumination" , "Beams" .)

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