Crossword Genius

A terrible tease? (3)

Ross

I believe the answer is:

rib

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

'tease?' is the definition.
(thesaurus)

'a terrible' is the wordplay.
'RIB' is hidden in amongst the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for rib that I've seen before include "Bone; umbrella rod" , "One of the 12 pairs of curved arches of bone" , "Eve was known as Adam's ..." , "Chest bone, may be floating" , "Guy" .)

I've seen this clue in the Evening Standard.
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