Miss amusing dinner invitation hosts sent without envelope (10)
I believe the answer is:
comedienne
'miss amusing' is the definition.
(female comedian - 'miss' can refer to a woman)
'dinner invitation hosts sent without envelope' is the wordplay.
I cannot quite see how this works, but
'invitation' could be 'come' (an invitation to come) and 'come' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for comedienne that I've seen before include "Rivers perhaps" , "Female comedy actor" , "Funny female performer" , "stand-up entertainer?" , "Female humorist" .)