Evens out of moon-press is blue (5)
I believe the answer is:
mopes
'blue' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'evens out of moon-press' is the wordplay.
'evens out of' indicates alternate letters (I've seen 'evens out' mean this (remove letters in even-numbered positions)).
'moon'+'press'='moonpress'
The alternating letters of 'moonpress' are 'MOPES'.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for mopes that I've seen before include "Broods about poems" , "is miserable" , "is sad" , "Feels dejected" , "Hangs about moodily" .)