Eat well in a noisy way (5)
I believe the answer is:
feast
'eat' is the definition.
(feasting is a kind of eating)
'well in a noisy way' is the wordplay.
'well' becomes 'ea' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'a noisy' becomes 'f'.
'way' becomes 'st'.
'f'+'st'='fst'
'ea' inserted inside 'fst' is 'FEAST'.
Can you help me to learn more?
(Other definitions for feast that I've seen before include "wine and dine" , "Lavish spread" , "lots of food" , "entertainment" , "Eat lavishly" .)