Hermit has one splitting sides (5)

I believe the answer is:

loner

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'hermit' is the definition.
(I've seen this in other clues)

'one splitting sides' is the wordplay.
'splitting' is an insertion indicator.
'sides' becomes 'lr' (I can't justify this - if you can you should give a lot more credence to this answer).
'one' inserted within 'lr' is 'LONER'.

'has' acts as a link.

Can you help me to learn more?

(Other definitions for loner that I've seen before include "One not desiring companionship" , "Unsociable person" , "Hermit" , "One liking solitude" , "Recluse" .)

I've seen this clue in The Sun.

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