The most common and most likely answer to this crossword clue is the 5 letter word ATEST which also is the latest solution we found used in LA Times in 2011.
Old fallout source crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| ATEST | 100 % | 5 | 
Words with a meaning similar to the clue: Old fallout source
These words may or may not be a possible solution to this crosswords clue.- crier
 - mother
 - paris
 - ash
 - silt
 - soot
 - dusty
 - crossover
 - point source
 - pall
 - shield
 - feedback
 
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution