A cat in charge at a tiny level (6)
I believe the answer is:
atomic
'tiny level' is the definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?
'a cat in charge at a' is the wordplay.
'a cat' becomes 'tom' (a tom is a male cat).
'in charge' becomes 'ic' (abbreviation for 'in charge').
'at' is a charade indicator (letters next to each other) (I've seen this in other clues).
'tom'+'ic'='tomic'
'tomic' put after 'a' is 'ATOMIC'.
Can you help me to learn more?
(Other definitions for atomic that I've seen before include "Very little" , "Sort of energy or number" , "Based on nuclear energy" , "Using nuclear energy" , "Extremely minute" .)