Little one

A poll by a national public opinion company has found that one in five Americans claim to have seen what? Solve the crossword, then read down the yellow squares to find the answer.

ACROSS

1 Sudden blasts of wind (5) 5 Very warm (3) 6 Council leader (5) 8 Banana - - -, indulgent ice cream dessert (5)

DOWN

1 Room for exercise (3) 2 Socially timid (3) 3 As well (3) 4 Walk with pride, perhaps arrogantly (5) 7 Poisonous snake that did for Cleopatra (3)