Story to cover in short, not too complicated? (10)
I believe the answer is:
fathomable
'not too complicated?' is the definition.
'story to cover in short' is the wordplay.
'story' becomes 'fable' (fable is a kind of story).
'to cover' is an insertion indicator.
'in short' becomes 'thoma' (I can't explain this - if you can you should give a lot more credence to this answer).
'fable' going around 'thoma' is 'FATHOMABLE'.
Can you help me to learn more?
(Other definitions for fathomable that I've seen before include "Comprehensible" , "understandable" .)