Make labs seem chaotic (8)
I believe the answer is:
assemble
'make' is the definition.
(I know that make is a more specific form of the action assemble)
'labs seem chaotic' is the wordplay.
'chaotic' indicates an anagram.
'labs'+'seem'='labsseem'
'labsseem' anagrammed gives 'ASSEMBLE'.
(Other definitions for assemble that I've seen before include "Build" , "Meet" , "Manufacture" , "Get together" , "Gather or collect together" .)