Can use gin without stopping (9)

I believe the answer is:

unceasing

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'can use gin without stopping' is the definition.
I can't judge whether this definition defines the answer.

'can use gin without stopping' is the wordplay.
'can use gin' can be anagrammed to 'UNCEASING'.
Though, I am not clear how this is indicated.

Can you help me to learn more?

(Other definitions for unceasing that I've seen before include "Never ending" , "Continuous" , "Not stopping" , "Constant" , "Endless" .)

I've seen this clue in The Irish Independent.

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