Vincent Simmons's strand of DNA (4)
I believe the answer is:
gene
I believe this clue is a triple definition!
'vincent' is the first definition.
(I've seen this before)
'simmons's' is the second definition.
(Kiss musician Gene Simmons)
'strand of dna' is the third definition.
'gene' can be an answer for 'dna' (genes are made up of DNA). I'm not sure about the 'strand of' bit.
Can you help me to learn more?
(Other definitions for gene that I've seen before include "Something got from parent < for boy" , "What makes us different" , "A segment of DNA" , "Embarrassment" , "may be passed to child" .)