Pinch the Spanish metal (6)
I believe the answer is:
nickel
'metal' is the definition.
(I know that nickel is a type of metal)
'pinch the spanish' is the wordplay.
'pinch' becomes 'nick' (both can mean to steal).
'the spanish' becomes 'el' ('the' in Spanish).
'nick'+'el'='NICKEL'
(Other definitions for nickel that I've seen before include "Metallic element, Ni" , "Metallic element; US coin" , "Coin worth half a dime" , "very little money" , "Silvery white metal" .)