What well-known singer does the definition "to cross a river" bring to your mind? Why, Tennessee Ernie FORD, of course. similarly, "fish country" suggests Judy GARLAND (= gar + land) and the clue "the evidence: a joint!" enigmatically refers to Rosemary CLOONEY (= clue + knee, in pronunciation).
Borgmann, Dmitri A.
Word Ways: Vol. 21
, Article 15.
Available at: http://digitalcommons.butler.edu/wordways/vol21/iss1/15