Wander around with trays (5)

I believe the answer is:

stray

I'm a little stuck... Click here to teach me more about this clue!

'wander' is the definition.
(I know that wander can be written as stray)

'with trays' is the wordplay.
'trays' can be anagrammed to 'STRAY'.
However, I am not clear how the anagram is indicated.

'around' acts as a link.

Can you help me to learn more?

(Other definitions for stray that I've seen before include "out of place" , "Wander; be unfaithful" , "digress" , "Lost pet" , "Appearing occasionally" .)

I've seen this clue in the Evening Standard.

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