My start will cause annoyance
My end lines: not real science
French island is my middle
I once composed a riddle
Who am I?
It is of course
Riley
My start will cause annoyance
Rile
My end lines: not real science
ley = something to do with paranormal "lines of energy"
French island is my middle
ile
I once composed a riddle
The now infamous My prefix is food, my suffix is rude
I think you are:
Riley
As for the explanation Statman gave a much better one so I will not edit mine anymore.
My start will cause annoyance
R-r-r-r is a sound of annoyance, grudge and a lot of other emotions
My end lines: not real science
Still working on it
French island is my middle
Ile is French for island
I once composed a riddle
And yes, Riley, started all this.