Familiar forename of Father Brown? (4)
I believe the answer is:
herb
'familiar forename' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'of father brown?' is the wordplay.
'of' says the answer is hidden in the clue.
'HERB' is hidden in the letters of 'father brown'.
Can you help me to learn more?
(Other definitions for herb that I've seen before include "Rosemary perhaps" , "Maybe sage" , "Medicinal or culinary plant" , "Savoury plant" , "Plant with leaves or seeds used medicinally" .)