A mass of stuff stuck in the new drier (3,5)
I believe the answer is:
tea cloth
'drier' is the definition.
(I've seen this before)
'a mass of stuff stuck in the new' is the wordplay.
'mass of stuff' becomes 'clot' (I can't justify this - if you can you should give a lot more credence to this answer).
'stuck in' is an insertion indicator.
'new' indicates anagramming the letters.
'a'+'clot'='aclot'
'the' anagrammed gives 'teh'.
'aclot' put into 'teh' is 'TEA-CLOTH'.
Can you help me to learn more?
(Other definitions for tea cloth that I've seen before include "towel in kitchen" , "one that dries up regularly" , "Washing up dryer" , "kitchen item" , "drier in kitchen" .)