Private secretary hosts rough Victorian types? (6)
I believe the answer is:
prudes
'victorian types?' is the definition.
'private secretary hosts rough' is the wordplay.
'private secretary' becomes 'ps' (eg in PPS - parliamentary private secretary).
'hosts' indicates putting letters inside.
'rough' becomes 'rude' ('rude' can be similar in meaning to 'rough').
'ps' enclosing 'rude' is 'PRUDES'.
(Other definitions for prudes that I've seen before include "They're excessively concerned about propriety and decorum" , "Stuffy types" , "Person excessively concerned about propriety and decorum" , "People of extreme propriety, too easily shocked" , "Persons of exaggerated propriety, too easily shocked" .)