Charon moved device for mooring his boat (6)

I believe the answer is:

anchor

'device for mooring his boat' is the definition.
(an anchor may be used to moor a boat)

'charon moved' is the wordplay.
'moved' indicates an anagram.
'charon' with letters rearranged gives 'ANCHOR'.

(Other definitions for anchor that I've seen before include "Securely fasten" , "Stabilise" , "Firmly secure; moor" , "reliable means of support" , "Device used to prevent vessel from drifting" .)

I've seen this clue in The Guardian.

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