Naval officer casts losers adrift (5,3,4)

I believe the answer is:

first sea lord

'naval officer' is the definition.

'casts losers adrift' is the wordplay.
'casts' indicates an anagram (cast can mean to mould or shape).
'losers'+'adrift'='losersadrift'
'losersadrift' with letters rearranged gives 'FIRST SEA LORD'.

(Other definitions for first sea lord that I've seen before include "Head of the Royal Navy" , "He's responsible for naval ships" .)

I've seen this clue in The Guardian.

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