You support, we hear, the shady side (4)

I believe the answer is:

ubac

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'we hear the shady side' is the definition.
I know nothing about this answer so I can't tell whether this works.

'you support' is the wordplay.
'you' becomes 'u' (commonly used in online communication).
'support' becomes 'bac' (I can't justify this - if you can you should give a lot more credence to this answer).
'u'+'bac'='UBAC'

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I've seen this clue in the Sydney Morning Herald.

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