Routine learned in guest house, say? (5-3-6)
I believe the answer is:
bread and butter
'routine' is the definition.
(bread and butter can mean routine or typical)
'learned in guest house say?' is the wordplay.
I cannot really understand how this works, but
'say?' could be 'read' (synonyms) and 'read' is found within the answer.
'learned' could be 'ba' and 'ba' is located in the remaining letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for bread and butter that I've seen before include "earned?" , "Main source of income" , "A crust" , "fare" , "basic course" .)