Solutions partiful-invite sender has 17 entries with similar clues

• 3-letter words
• askInvite
• 5-letter words
• askinInvite to enter (2 wds.)
• guestInvited visitor
• hadininvited to one's home
• 6-letter words
• maskedHead of music invited to a type of ball
• guestsPeople who are invited to an event
• 7-letter words
• unaskedNot invited
• allstarCelebrity-only Liberal Arts party, Brie's not invited
• spambotautomated sender of unwanted emails
• 8-letter words
• unbiddenWithout having been invited
• 9-letter words
• tag-alongAccompany someone without being invited
• 10-letter words
• ask-for-itpc helpline user may thus invite trouble
• joanriversAmerican comedienne and TV personality who was one of only four Americans invited to the wedding of Prince Charles and Camilla Parker Bowles in 2005
• 11-letter words
• reciprocateInvite someone in return
• letterheadsNames and addresses of the sender printed at the top of the stationary
• 15-letter words
• ride-for-a-fallInvite trouble by reckless actions
• ask-for-troubleInvite difficulty by one's actions