Investigation (8)
'investigation' is the definition.
(analysis is a kind of investigation)
This is the entire clue.
(Other definitions for analysis that I've seen before include "See 3" , "resolution" , "Determination" , "Detailed interpretation" , "Detailed investigation" .)
'investigation' is the definition.
(research is investigating something)
This is the entire clue.
(Other definitions for research that I've seen before include "material for investigation" , "Look into" , "What may make you a doctor" , "Investigate through study" , "scientific survey" .)
'investigation' is the definition.
(probe can mean an investigation or inquiry)
This is all the clue.
(Other definitions for probe that I've seen before include "Intrusive device" , "Investigate closely" , "Inquiry" , "Poke into" , "Examine searchingly" .)