Require light like a Christmas tree? (7)

I believe the answer is:

needled

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'like a christmas tree?' is the definition.
I can't tell whether this definition defines the answer.

'require light' is the wordplay.
'require' becomes 'need' (synonyms).
'light' becomes 'led' (light-emitting diode).
'need'+'led'='NEEDLED'

Can you help me to learn more?

(Other definitions for needled that I've seen before include "Annoyed - provoked" , "Irked" , "Piqued" , "got angry" , "Goaded or provoked" .)

I've seen this clue in The Independent.

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