Criticise father, one potentially endangered (5)
I believe the answer is:
panda
'one potentially endangered' is the definition.
I can't tell whether this defines the answer.
'criticise father' is the wordplay.
'criticise' becomes 'pan' (informal term meaning to criticise heavily).
'father' becomes 'da' (da can mean dad).
'pan'+'da'='PANDA'
Can you help me to learn more?
(Other definitions for panda that I've seen before include "Police car" , "Bearlike animal" , "Large bear from the bamboo forests of China and Tibet" , "Black and white animal" , "One bearlike" .)