Made dull patios, one without any walls getting very high praise (9)

I believe the answer is:

adulation

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'praise' is the definition.
(I have seen 'Fulsome praise ' mean 'adulation' so perhaps 'praise' could also mean 'adulation')

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for adulation that I've seen before include "pats on the back" , "Praise - flattery" , "Servile flattery" , "Worshipping" , "Adoration, idolisation" .)

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