Express strong feelings about e-book (5)
I believe the answer is:
emote
'express strong feelings' is the definition.
'emote' can be an answer for 'feelings' (I have seen 'Express feelings' mean 'emote' so perhaps 'feelings' could also mean 'emote'). I'm not certain of the 'express strong' bit.
'about e-book' is the wordplay.
'about' says the letters should be written backwards.
'book' becomes 'tome' (a tome is a book).
'e'+'tome'='etome'
'etome' reversed gives 'EMOTE'.
Can you help me to learn more?
(Other definitions for emote that I've seen before include "Show extreme feelings" , "Openly show feelings" , "Show feeling excessively" , "Cry freely" , "Go over the top" .)