Creature cages cannot bottle (8)
I believe the answer is:
decanter
'bottle' is the definition.
(I know that decanter is a type of bottle)
'creature cages cannot' is the wordplay.
'creature' becomes 'deer' (I've seen this in other clues).
'cages' is an insertion indicator.
'cannot' becomes 'can't' (contraction).
'deer' enclosing 'cant' is 'DECANTER'.
(Other definitions for decanter that I've seen before include "Provider of drink" , "quantity of wine?" , "Stoppered wine bottle" , "Ornamental bottle into which wine is poured slowly" , "Spirits/wine container" .)