Crossword Genius

Let me pour liquid mineral (9)

Ross

I believe the answer is:

petroleum

'mineral' is the definition.

'let me pour liquid' is the wordplay.
'liquid' is an anagram indicator.
'let'+'me'+'pour'='letmepour'
'letmepour' is an anagram of 'PETROLEUM'.

(Other definitions for petroleum that I've seen before include "Source of fuel" , "Crude oil" , "Hydrocarbon oil" , "Oil well product" , "Fuel oil" .)

I've seen this clue in The Independent.
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