Cut Channel's source for blubber? (4,4)
I believe the answer is:
tear duct
'source for blubber?' is the definition.
(where tears come from when blubbing)
'cut channel's' is the wordplay.
'cut' becomes 'tear' (I am not sure about this - if you are sure you should believe this answer much more).
'channel' becomes 'duct' (duct is a kind of channel).
'tear'+'duct'='TEAR-DUCT'
Can you help me to learn more?
(Other definitions for tear duct that I've seen before include "source of visible upset" , "Passage for fluid from the eyes" , "Passage for the liquid secreted from the eye" , "A crying need" .)