Crossword Genius

A tower is encountered and the rajah's wife is held up (7)

Ross

I believe the answer is:

minaret

I'm a little stuck... Click here to teach me more about this clue!

'a tower' is the definition.
(I know that minaret is a type of tower)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for minaret that I've seen before include "Muezzin's tower" , "Slender tower with balconies" , "Building" , "Mosque spire" , "tower in Istanbul, say" .)

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