Poor sci-fi novel is making me sleepy (9)
I believe the answer is:
soporific
'sleepy' is the definition.
(I've seen this in another clue)
'poor sci-fi novel' is the wordplay.
'novel' is an anagram indicator (letters in a new or novel order).
'poor'+'sci'+'fi'='poorscifi'
'poorscifi' is an anagram of 'SOPORIFIC'.
'is making me' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for soporific that I've seen before include "Inducing drowsiness or sleep" , "making one nod" , "Sedative" , "Sleep-inducing" , "Causing sleepiness" .)