Score with pious type in secret rendezvous (5)
I believe the answer is:
tryst
'secret rendezvous' is the definition.
(I've seen this before)
'score with pious type' is the wordplay.
'score' becomes 'try'.
'with' says to put letters next to each other.
'pious type' becomes 'st' (saint).
'try'+'st'='TRYST'
'in' acts as a link.
(Other definitions for tryst that I've seen before include "Lump (of gold, etc)" , "An archaic lovers' meeting" , "Rendezvous - assignation" , "meeting with another person" , "Secret assignation" .)