Crossword Genius

Trip into a plastered wall (9)

Ross

I believe the answer is:

partition

'wall' is the definition.
(I've seen this before)

'trip into a plastered' is the wordplay.
'plastered' indicates an anagram (plastered can informally mean drunk).
'trip'+'into'+'a'='tripintoa'
'tripintoa' with letters rearranged gives 'PARTITION'.

(Other definitions for partition that I've seen before include "Screen" , "wall" , "Separation (of a country) into separate nations" , "Barrier" , "segregation" .)

I've seen this clue in The Independent.
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