Muse about creatures (4)

I believe the answer is:

emus

'creatures' is the definition.
(emu is a kind of creature)

'muse about' is the wordplay.
'about' indicates an anagram.
'muse' with letters rearranged gives 'EMUS'.

(Other definitions for emus that I've seen before include "Aussie birds" , "Running birds" , "Muse about flightless Australian birds" , "Large flightless birds of Australia" , "laboratory units" .)

I've seen this clue in The Mirror.

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