Leave large serving of food of a yellowish colour (7)

I believe the answer is:

goldish

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

'food of a yellowish colour' is the definition.
The definition suggests an adjective which matches the answer.

'leave large serving' is the wordplay.
'leave' becomes 'go' (to go is to depart or leave).
'large' becomes 'L' (eg in clothes sizes).
'serving' becomes 'dish' (I can't explain this - if you can you should believe this answer much more).
'go'+'l'+'dish'='GOLDISH'

'of' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app