Possible Clues:

• Come between; interrupt
• Involve oneself
• Step in (to change the course of events)
• Step in and lay to rest Venerable Bede at last
• Get involved so as to alter outcomes
• Step in; come between
• Step in when Bury against Everton ends ultimately in violence
• Get involved in free event the Queen puts on
• Get involved with some painter, Venetian?
• Interfere between disputants