Thrilled reaction at lazy morning touring second rate dump (7,3)
I believe the answer is:
wheelie bin
'rate dump' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'thrilled reaction at lazy morning touring second' is the wordplay.
'thrilled reaction at' becomes 'whee' (I am not sure about this - if you are sure you should believe this answer much more).
'lazy morning' becomes 'lie in'.
'touring' indicates putting letters inside (touring can mean going round).
'second' becomes 'b' (B can mean second eg B-side).
'liein' placed around 'b' is 'liebin'.
'whee'+'liebin'='WHEELIE BIN'
Can you help me to learn more?
(Other definitions for wheelie bin that I've seen before include "Moveable garbage container" , "Portable refuse collector" , "dirty vessel" .)