Steps required for returning chimney in Glasgow area (7)
I believe the answer is:
formula
'steps' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'returning chimney in glasgow area' is the wordplay.
'returning' says the letters should be written backwards.
'chimney' becomes 'lum' (Scottish word for a chimney).
'in' is an insertion indicator.
'glasgow area' becomes 'fora' (I can't justify this - if you can you should give a lot more credence to this answer).
'lum' reversed gives 'mul'.
'mul' put inside 'fora' is 'FORMULA'.
'required for' is the link.
Can you help me to learn more?
(Other definitions for formula that I've seen before include "One that's on track" , "powdered milk for babies" , "Mathamatical expression" , "Set expression" , "Baby food" .)