Manage, nowadays, with clergyman (10)
I believe the answer is:
administer
'manage' is the definition.
(I know that administer is a more specific form of the action direct)
'nowadays with clergyman' is the wordplay.
'nowadays' becomes 'AD' (AD, Anno Domini, as opposed to BC, Before Christ).
'with' is a charade indicator (letters next to each other).
'clergyman' becomes 'minister' (minister is a kind of clergyman).
'ad'+'minister'='ADMINISTER'
(Other definitions for administer that I've seen before include "Deal out (punishment)" , "Oversee" , "act as manager" , "Organise" , "conduct" .)