Puss I caught after a minute (6)
I believe the answer is:
atomic
'minute' is the definition.
(synonyms)
'puss i caught after a' is the wordplay.
'puss i' becomes 'tomi' (I can't justify this - if you can you should give a lot more credence to this answer).
'caught' becomes 'c' (cricket abbreviation).
'after' is a charade indicator (letters next to each other).
'tomi'+'c'='tomic'
'tomic' after 'a' is 'ATOMIC'.
Can you help me to learn more?
(Other definitions for atomic that I've seen before include "Describing tiny particles" , "Very little" , "Extremely minute" , "Immeasurably small -- omit AC (anag)" , "Sort of energy or number" .)