Tower-building engineer (1832-1923) (6)

I believe the answer is:

eiffel

(Other definitions for eiffel that I've seen before include "& 21 Across Parisian landmark" , "Creator of a Paris landmark, built in 1889" , "Parisian tower designer" , "French structural engineer" , "Great tower of Paris" .)

I've seen this clue in The Times.

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