It's easy to take in Nero, the leader consumed by Fire (5)
I believe the answer is:
snack
'it's easy to take' is the definition.
I can't tell whether this defines the answer.
'nero the leader consumed by fire' is the wordplay.
'the leader' suggests taking the first letters.
'consumed by' means one lot of letters goes inside another.
'fire' becomes 'sack' (dismiss someone from their job).
The initial letter of 'nero' is 'n'.
'n' inserted into 'sack' is 'SNACK'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for snack that I've seen before include "Elevenses?" , "fast food" , "Quick bite to eat" , "(Eat) a light meal" , "Light bite" .)