Entertaining woman in stockings — time to get extremely suspicious (7)
I believe the answer is:
hostess
'entertaining woman' is the definition.
(someone who is entertaining or hosting guests)
'in stockings time to get extremely suspicious' is the wordplay.
'in' is an insertion indicator.
'stockings' becomes 'hose' (I've seen this in another clue).
'time' becomes 't' (abbreviation).
'to get' is a charade indicator (letters next to each other).
'extremely' suggests removing the centre (extreme, outside letters only).
'suspicious' with its centre removed is 'ss'.
'hose' enclosing 't' is 'hoste'.
'hoste'+'ss'='HOSTESS'
(Other definitions for hostess that I've seen before include "Aircraft stewardess" , "Person providing hospitality" , "Woman giving a party" , "Plane stewardess" , "Woman employed by a nightclub" .)