Crossword Genius

Outbuilding no longer wanted? (4)

Ross

I believe the answer is:

shed

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

'outbuilding' is the definition.
(I know that shed is a type of outbuilding)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for shed that I've seen before include "Take off in hut?" , "Hut - throw off - Guardian cryptic crossword setter" , "In which tools may be" , "Barn" , "Separate" .)

I've seen this clue in the Evening Standard.
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