Here are the possible solutions for describing a route from n a to london clue
Answer
Clue
Relevancy
fab
Clue
Word before Four, when describing the Beatles, or Five, when describing Van Halen, or Fifteen, when describing a band I just made up with 15 awesome harpists
Definition
excellent
polar
Clue
Describing a route from N.A. to London
Definition
a straight line related to a point
saloon
Clue
Describing a bar — describing a car
rainy
Clue
Describing London forecasts, often
Definition
marked by rain
tubemap
Clue
London subway route diagram
abig
Clue
"It's not ___ truck. It's a series of tubes" (Senator Ted Stevens describing the internet)