Owner finally entering flat turned over finds bottle (5)
I believe the answer is:
nerve
'finds bottle' is the definition.
'nerve' can be an answer for 'bottle' (both can mean courage). I'm unsure of the 'finds' bit.
'owner finally entering flat turned' is the wordplay.
'finally' says to take the final letters.
'entering' is an insertion indicator.
'flat' becomes 'even' (level).
'turned' is a reversal indicator.
The last letter of 'owner' is 'r'.
'r' put within 'even' is 'evren'.
'evren' reversed gives 'NERVE'.
'over' is the link.
Can you help me to learn more?
(Other definitions for nerve that I've seen before include "Intrepidity" , "Courage - impertinence" , "Confidence" , "Fearlessness" , "Cool courage" .)