Responsibility leader ignored to admit I ignited gas, perhaps (7)

I believe the answer is:

utility

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'responsibility leader ignored to admit i ignited gas perhaps' is the definition.
I can't tell whether this defines the answer.

'responsibility leader ignored to admit i ignited' is the wordplay.
'responsibility' becomes 'duty' (synonyms).
'leader ignored' means to remove the first letter.
'to admit' is an insertion indicator.
'ignited' becomes 'lit' (synonyms).
'duty' with its first letter taken away is 'uty'.
'i'+'lit'='ilit'
'uty' placed around 'ilit' is 'UTILITY'.

Can you help me to learn more?

(Other definitions for utility that I've seen before include "Supplier of gas or electricity" , "water provider, say" , "Eg, gas supplier" , "Gas, electricity, etc" , "gas, for example" .)

I've seen this clue in The Times.

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