Heavenly end for many a Russian (3)
I believe the answer is:
sky
'russian' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'heavenly end for many a' is the wordplay.
'end' suggests the final letters.
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'many a' becomes 'sk' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The last letter of 'heavenly' is 'y'.
'y' after 'sk' is 'SKY'.
Can you help me to learn more?
(Other definitions for sky that I've seen before include "Orbiting space-station" , "Hit upwards" , "-- Blue" , "Hit high into the air" , "Firmament" .)