Crossword Genius

Anxious uncertainty getting lift could develop into spitefulness (8)

Ross

I believe the answer is:

suspense

'anxious uncertainty' is the definition.
(I've seen this before)

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

(Other definitions for suspense that I've seen before include "Excited anticipation of approaching climax" , "The 3 of having to wait" , "State of uncertainty or excitement" , "Seen puss (anag.)" , "Doubt" .)

I've seen this clue in The Guardian.
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