They won't keep beer I splash all over the place (11)

I believe the answer is:

perishables

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'they won't keep' is the definition.
The definition suggests an adverb but the answer is not.

'beer i splash all over the place' is the wordplay.
'all over the place' is an anagram indicator.
'beer'+'i'+'splash'='beerisplash'
'beerisplash' is an anagram of 'PERISHABLES'.

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