What do the following two-word phrases have in common?

FLY TRAP

SIDE ARM

EXIT LANE

HOUSE BRAND

WATER WORKS

 

HINT:

Both halves of each phrase have the same thing in common.

 

Answer:

 

Both words in each phrase can be preceded by FIRE.

 

Credit:

Morton J. Mendelson

Wall Street Journal Crossword 

UP IN FLAMES