'Revolver' LP I stole, minus sleeves (6)

I believe the answer is:

pistol

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'revolver' is the definition.
(thesaurus)

'lp i stole minus sleeves' is the wordplay.
'PISTOL' is hidden within the letters.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for pistol that I've seen before include "Type of gun" , "Rectangular" , "Hand weapon" , "Piece" , "Arm" .)

I've seen this clue in The Telegraph.

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