Put in gully over slips, with tail essentially (4,4,3)

I believe the answer is:

give your all

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'put' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'gully over slips with tail essentially' is the wordplay.
'slips with' indicates anagramming the letters.
'essentially' indicates the central letters.
The middle of 'tail' is 'ai'.
'gully'+'over'='gullyover'
'gullyover' with its letters mixed up with 'ai' can make 'GIVE YOUR ALL'.

'in' is the link.

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

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