Rudely treat us as soaks (9)
I believe the answer is:
saturates
'soaks' is the definition.
('saturate' can be a synonym of 'soak')
'rudely treat us as' is the wordplay.
'rudely' is an anagram indicator.
'treat'+'us'+'as'='treatusas'
'treatusas' is an anagram of 'SATURATES'.
(Other definitions for saturates that I've seen before include "floods" , "Soaks" .)
I've seen this clue in The Telegraph and The Independent.
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