Cry of delight from Clouseau's certainly on the soundtrack (4)

I believe the answer is:

whee

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'cry of delight' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for whee that I've seen before include "What fun" , "I'm going downhill, fast!" , "Expression of delight" , "Cry from someone going downhill fast?" , "Exuberant cry" .)

I've seen this clue in The Independent.

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