Left a cast beaten (6)

I believe the answer is:

lashed

'beaten' is the definition.
(lashing is a kind of beating)

'left a cast' is the wordplay.
'left' becomes 'l' (common abbreviation).
'cast' becomes 'shed' (synonyms).
'l'+'a'+'shed'='LASHED'

(Other definitions for lashed that I've seen before include "Fastened securely" , "Hit" , "Flogged" , "Tied -- beaten" , "Tied; whipped" .)

I've seen this clue in The Telegraph.

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