Spit for example, from American tucking into roll (7)
I believe the answer is:
roaster
'spit for example' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'american tucking into roll' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'tucking into' indicates putting letters inside.
'roll' becomes 'roster' (roll can mean a list or roster).
'a' going into 'roster' is 'ROASTER'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for roaster that I've seen before include "Oven-ready bird" , "Fowl for the oven" , "Chicken, perhaps" , "oven item" , "A resort (anag.)" .)