Father adopting type of Buddhism, almost bewildered (5)
I believe the answer is:
Here is my best explanation:
'bewildered' is the definition.
'father adopting type of buddhism almost' is the wordplay.
'father' becomes 'dad' (dad is a kind of father).
'adopting' indicates putting letters inside.
'type of buddhism' becomes 'zen'.
'almost' means to remove the last letter (most of the word but not all of it).
'zen' with its last letter taken off is 'ze'.
'dad' going around 'ze' is 'DAZED'.