Sponge pudding making comeback, I see (6)
I believe the answer is:
loofah
'sponge' is the definition.
(loofah is a type of sponge)
'pudding making comeback i see' is the wordplay.
'pudding' becomes 'fool' (type of dessert).
'making comeback' says the letters should be written in reverse.
'i see' becomes 'ah' (exclamation used to indicate understanding).
'fool' in reverse letter order is 'loof'.
'loof'+'ah'='LOOFAH'
(Other definitions for loofah that I've seen before include "Fibrous part of gourd used as scrubber" , "Dried part of plant used as a bath sponge" , "Dried gourd pod used as bath sponge" , "Bath scrubber" , "Washing aid" .)