The most common and most likely answer to this crossword clue is the 6 letter word VINYLS
V
I
N
Y
L
S
More clues leading to the result VINYLS
Buddy explains!

The straight part
We know that "resins" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case resins = vinyls.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does VINYLS mean?
VINYLS noun- The univalent radical CH2=CH−, derived from ethylene.
- Any of various compounds and substances containing the vinyl radical, especially various tough, flexible, shiny plastics.
- Phonograph records as a medium.
- A phonograph record.