It's laid-back to have worked inside farm (6)
I believe the answer is:
grange
'farm' is the definition.
(I know that grange is a type of farm)
'it's laid-back to have worked' is the wordplay.
'it's laid back' is a reversal indicator.
'to' becomes 'egg' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'have' is an insertion indicator.
'worked' becomes 'ran' (eg a machine that works is running).
'egg' backwards is 'gge'.
'gge' enclosing 'ran' is 'GRANGE'.
'inside' acts as a link.
Can you help me to learn more?
(Other definitions for grange that I've seen before include "Farmhouse" , "Country house and surrounding buildings" , "farming complex" , "Ganger in country house with farm buildings" , "old dwelling" .)