I’m going round part of farmyard in a fog (5)

I believe the answer is:

misty

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'in a fog' is the definition.
(thesaurus)

'i'm going round part of farmyard' is the wordplay.
'going round' is a reversal indicator.
'part of farmyard' becomes 'sty' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'im' backwards is 'mi'.
'mi'+'sty'='MISTY'

Can you help me to learn more?

(Other definitions for misty that I've seen before include "Cloudy, foggy" , "Dim, obscure, clouded" , "Dim, indistinct" , "Indistinct; slightly foggy" , "Indistinct in outline" .)

I've seen this clue in The Times.

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