Clue: Cross to put outside old Islington pub (7)
Answer: TANGELO
Explanation: Definition: Cross

**TO** *put outside* **ANGEL** ("old Islington pub")
 

 
*A tangelo is a cross between two citrus fruits, such as a tangerine and a grapefruit.*
 

 
*The Angel, Islington appears on the traditional London Monopoly board.