Claps, only at the start and end, while playing music from Trinidad (7)

I believe the answer is:

calypso

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'music from trinidad' is the definition.
'calypso' can be an answer for 'music' (I've seen this before). I'm unsure of the 'from trinidad' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for calypso that I've seen before include "island song" , "Sea nymph of Greek mythology - Caribbean ballad" , "W. Indies music" , "Slay cop with a West Indian song" , "Hostage-holding nymph" .)

I've seen this clue in The Irish Times.

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