Care to put in an offer for acetylene fuel (7)

I believe the answer is:

carbide

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'acetylene fuel' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'care to put in an offer' is the wordplay.
'to put in' means one lot of letters goes inside another (instruction to solver).
'an offer' becomes 'bid' (bid is a kind of offer).
'care' placed around 'bid' is 'CARBIDE'.

'for' is the link.

Can you help me to learn more?

(Another definition for carbide that I've seen is " constituent of acetylene".)

I've seen this clue in The Globe and Mail.

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