Crossword Genius

Gas on for potato cake (6)

Ross

I believe the answer is:

waffle

I'm a little stuck... Click here to teach me more about this clue!

This could be a double definition.

'gas on' is the first definition.
(I've seen this before)

'potato cake' is the second definition.
'waffle' can be an answer for 'cake' (waffle is a kind of cake). I'm not certain of the 'potato' bit.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for waffle that I've seen before include "Vague wordy talk or writing" , "Battered cake" , "Talk vaguely and at length" , "Breakfast item - go on and on" , "blather" .)

I've seen this clue in The Times.
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