Clue: 5p bagel also in news (7)
Answer: PONTOON
Explanation: Definition: 5
the definition is "5" (5 down, BRIDGE) as a pontoon is type of floating bridge 
P (taken from "5p", without the definition "5") + O (a "bagel" is a score of 0 games in a tennis set) + TOO="also" in NN (N="new", NN="news")