Understanding this should be mixed with gin
I believe the answer is:
insight
'understanding' is the definition.
(insight is a kind of understanding)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for insight that I've seen before include "Penetrative quality" , "Awareness" , "Deep understanding" , "what psychoanalysts hope to gain" , "Sudden understanding" .)