Taxonomic category for monks (5)
I believe the answer is:
order
I believe this clue is a double definition.
'taxonomic category' is the first definition.
(I know that order is a type of taxonomic category)
'for monks' is the second definition.
(Other definitions for order that I've seen before include "Tidy state - that's a command" , "Issue a command" , "kind > direction" , "Ruling" , "Directive for harmony" .)