The little one

Which part of the Eiffel Tower is described as weighing as much as ten elephants? Solve the crossword, then read down the yellow squares to find the answer.

ACROSS

1 Rains heavily (5) 5 Rotter (3) 6 Numbers game (5) 8 Torment playfully, tantalise (5)

DOWN

1 Local inn (3) 2 Large vat of tea (3) 3 Old bit of cloth (3) 4 Fourteen pounds (5) 7 Rocks in Scotch? (3)