What gives info on psyche, ultimately, and personal quirks (8)
I believe the answer is:
genetics
'what gives' is the definition.
I can't judge whether this definition defines the answer.
'info on psyche ultimately and personal quirks' is the wordplay.
'info' becomes 'gen' (informal term for information).
'on' is a charade indicator (letters next to each other).
'ultimately' says to take the final letters.
'and' means one lot of letters go next to another.
'personal quirks' becomes 'tics' (I've seen this in another clue).
The final letter of 'psyche' is 'e'.
'gen'+'e'+'tics'='GENETICS'
Can you help me to learn more?
(Other definitions for genetics that I've seen before include "The scientific study of heredity" , "Branch of biology" , "Study of inherited characteristics" , "Science of heredity" , "The study of biological heredity" .)