Every evening (7)
I believe the answer is:
nightly
'every evening' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nightly that I've seen before include "At the end of each day" , "Every twenty-four hours in the dark" , "Nocturnally" , "Regularly during the hours of darkness" , "Every day between sunset and sunrise" .)