Essential ingredients of cold liver and hot milk in salad dressing (5,3)
I believe the answer is:
olive oil
'salad dressing' is the definition.
(I've seen this before)
'essential ingredients of cold liver and hot milk' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is located in the answer.
'hot' could be 'live' (similar in meaning) and 'live' is present in the answer.
The remaining letters 'oil' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for olive oil that I've seen before include "dressing maybe" , "Ingredient of salad dressing" , "Substance pressed from fruit" , "Ingredient of vinaigrette" , "Culinary liquid" .)