Spoils feature of Burns Night bringing in one vegetable (5,5)

I believe the answer is:
maris piper
'vegetable' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'spoils feature of burns night bringing in one' is the wordplay.
'spoils' becomes 'mars' ('mar' can be a synonym of 'spoil').
'feature of burns night' becomes 'piper' (I can't justify this - if you can you should give a lot more credence to this answer).
'bringing in' means one lot of letters goes inside another.
'one' becomes 'i' (Roman numeral).
'mars'+'piper'='marspiper'
'marspiper' going around 'i' is 'MARIS PIPER'.
Can you help me to learn more?
(Another definition for maris piper that I've seen is " Potato".)
