Man who provides Europe with store of DNA (6)
I believe the answer is:
eugene
'man who provides europe with store of dna' is the definition.
'Eugene' can be an answer for 'man'. I am not certain of the remainder of the definition.
'man who provides europe' is the wordplay.
I cannot quite see how this works, but
'man' could be 'eugen' and 'eugen' is located in the answer.
'europe' could be 'e' (abbreviation eg in E number) and 'e' is present in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for eugene that I've seen before include ". . . . . . Onegin (Tchaikovsky) (6)" , "- Onegin, Tchaikovsky opera" , "opera, but only first half" , "Dramatist...... O'Neill wrote 'The Iceman Cometh'" , "- Onegin (Pushkin)" .)