Horse fed large alcoholic drink, one of those beaten (5,4)

I believe the answer is:

steel drum

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'one of those beaten' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'horse fed large alcoholic drink' is the wordplay.
'horse' becomes 'steed' (steed is a kind of horse**).
'fed' is an insertion indicator (one word is \'fed\' to another).
'large' becomes 'l'.
'alcoholic drink' becomes 'rum' (I've seen this before).
'steed' enclosing 'l' is 'steeld'.
'steeld'+'rum'='STEEL DRUM'

Can you help me to learn more?

(Other definitions for steel drum that I've seen before include "Metal instrument" , "Trinidadian instrument" .)

I've seen this clue in The Telegraph.

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