A Riddle, just for fun

[AndrewT]

Today, at one of the Clubs, that I attend we had a 'Creative Writing' session. I wrote a Riddle, that I will now Post here.

My first is in 'rain' but NOT in 'slain'

My second is in 'ibex' but NOT in'rolex'

My third is in 'deaf' but NOT in 'leaf'

My fourth is in 'deal' but NOT in 'real'

My fifth is in 'lead' and ALSO in 'lift'

My sixth is in 'egg' but NOT in 'pig'

My whole is something you must solve. What an I?

This is actually, far easier, to solve than it first appears. When you solve it you will see why. Anyway Everyone, get your Brain Boxes' out, and let me know how long it took you. (It took me about fifteen minutes to write this but then it IS 'based' on one I read somewhere.

Anyway see how you Get On.

AndrewT