A cottage's interior I renovated in a restless fashion (7)
I believe the answer is:
agitato
'in a restless fashion' is the definition.
I can't judge whether this defines the answer.
'a cottage's interior i renovated' is the wordplay.
'interior' means to look at the middle letters.
'renovated' indicates an anagram.
The centre of 'cottage' is 'ottag'.
'ottag'+'i'='ottagi'
'ottagi' is an anagram of 'gitato'.
'a'+'gitato'='AGITATO'
Can you help me to learn more?
(Other definitions for agitato that I've seen before include "Restless, wild (musical term)" , "Restlessly (mus.)" , "Excited" , "stirring music" , "in tense manner" .)