Schmaltzy book about Scottish island on loch (9)
I believe the answer is:
emotional
'schmaltzy' is the definition.
(similar in meaning)
'book about scottish island on loch' is the wordplay.
'book' becomes 'tome' (a tome is a book).
'about' says the letters should be written backwards.
'scottish island' becomes 'iona' (island of the Hebrides).
'on' says to put letters next to each other.
'loch' becomes 'l'.
'tome' written backwards gives 'emot'.
'emot'+'iona'+'l'='EMOTIONAL'
(Other definitions for emotional that I've seen before include "Poignant" , "Characterized by intense feeling" , "Moved" , "Dramatic" , "expressing feelings" .)