A comic put back: it's available in the bathroom (5)
I believe the answer is:
loofa
'available in the bathroom' is the definition.
I can't judge whether this definition defines the answer.
'a comic put back' is the wordplay.
'comic' becomes 'fool' (fool is a kind of comic).
'put back' is a reversal indicator.
'a'+'fool'='afool'
'afool' reversed gives 'LOOFA'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for loofa that I've seen before include "back-scratcher?" , "Flesh-brush" , "Bath sponge" , "One in bath" , "American scrubber" .)