Lumpy, large noodles from the East are trimmed (7)
I believe the answer is:
nodular
'lumpy' is the definition.
(I've seen this before)
'large noodles from the east are trimmed' is the wordplay.
'large' becomes 'L' (eg in clothes sizes).
'noodles' becomes 'udon' (I can't justify this - if you can you should give a lot more credence to this answer).
'from the east' is a reversal indicator (on a map from right to left).
'trimmed' means to remove the last letter (the last letter is trimmed off).
'l'+'udon'='ludon'
'ludon' backwards is 'nodul'.
'are' with its final letter taken off is 'ar'.
'nodul'+'ar'='NODULAR'
Can you help me to learn more?
(Other definitions for nodular that I've seen before include "Knobbly" , "Having small lumps" , "Like knots" , "Like a small swelling" , "Relating to swellings" .)