Lowly lord keeps Tesla in farmyard (6)

'farmyard' is the definition.
Both the definition and answer are singular nouns.
Maybe there's an association between them I don't understand?

'lowly lord keeps tesla' is the wordplay.
I cannot really understand how this works, but
'tesla' could be 't' (scientific unit) and 't' is found in the answer.
'lord' could be 'baron' (baron is a kind of lord) and 'baron' is found in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...

'in' is the link.

Can you help me to learn more?