Stiff language about cake (4)
I believe the answer is:
flan
'cake' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'stiff language about' is the wordplay.
'about' indicates the answer is hidden within the clue (the clue goes around or about the answer).
'FLAN' is hidden in the letters of 'stiff language'.
Can you help me to learn more?
(Other definitions for flan that I've seen before include "dish, sweet or savoury" , "Open-topped pastry dish" , "Open tart with a sweet or savoury filling" , "it may get jammed" , "Open-topped tart" .)