Fairly standard to have baby animal at the centre of the scene - it adds flavour (5,4)
I believe the answer is:
stock cube
'fairly standard' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'have baby animal at the centre of the scene it adds flavour' is the wordplay.
I cannot quite understand how this works, but
'have' could be 'stock' (stocking is a kind of having) and 'stock' is found within the answer.
'baby' could be 'cub' (cub can mean a baby) and 'cub' is located in the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is located in the answer.
No letters remain.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for stock cube that I've seen before include "Ingredient of soup or casserole" , "Six-faced soup ingredient" , "Dehydrated item used in making soups and sauces" , "Culinary flavour enhancer" , "Meat or vegetable extract used in soups and stews" .)