Here cars are involved in scientific inquiry (8)
I believe the answer is:
research
'scientific inquiry' is the definition.
'research' can be an answer for 'inquiry' (synonyms). I am not certain of the 'scientific' bit.
'here cars are involved' is the wordplay.
'are involved' is an anagram indicator (involved can mean confusing or complex).
'here'+'cars'='herecars'
'herecars' anagrammed gives 'RESEARCH'.
'in' is the link.
Can you help me to learn more?
(Other definitions for research that I've seen before include "Scientific study" , "Fact-finding" , "Experimentation" , "scientific survey" , "Thoroughly investigate" .)