Component of sci-fi? Bank on including fine SF show (7)
I believe the answer is:
firefly
'sf show' is the definition.
I can't tell whether this definition defines the answer.
'component of sci-fi? bank on including fine' is the wordplay.
'component of sci-fi?' becomes 'fi' (I can't explain this - if you can you should believe this answer much more).
'bank on' becomes 'rely' (I've seen this before).
'including' is an insertion indicator.
'fine' becomes 'f' (abbreviation in pencil classifications).
'rely' placed around 'f' is 'refly'.
'fi'+'refly'='FIREFLY'
Can you help me to learn more?
(Other definitions for firefly that I've seen before include "One shining" , "crawler" , "Winged beetle - racing dinghy" , "Luminescent insect" , "Beetle which glows in the dark" .)