Soft glow is potentially charming, encircling loch (11)

I believe the answer is:

candlelight

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

'soft glow' is the definition.
'candlelight' can be an answer for 'glow' (I have seen 'Romantic glow' mean 'candlelight' so perhaps 'glow' could also mean 'candlelight'). I'm not sure about the 'soft' bit.

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for candlelight that I've seen before include "Early illumination" , "Romantic glow" , "Dim illumination from tapers, etc" .)

I've seen this clue in The Times.

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