As one studying certain relationships, I got close, involved (9)
I believe the answer is:
ecologist
'as one studying certain relationships' is the definition.
I can't tell whether this defines the answer.
'i got close involved' is the wordplay.
'involved' indicates anagramming the letters (involved can mean confusing or complex).
'i'+'got'+'close'='igotclose'
'igotclose' anagrammed gives 'ECOLOGIST'.
Can you help me to learn more?
(Other definitions for ecologist that I've seen before include "Environmentalist" , "Studier of organisms and the environment" , "See scientist" , "One studying the relation between organisms and their environment" , "One concerned with the environment" .)