Yup I'll go with doublet, tho I don't get the pledger connection. Other suggestion Doggett interesting but doesn't fit my letters.
Got the rest of bottom LH corner too with your clue - thanks Norm
"define:undee"
I don't think I was too clear here but if you paste or type the above - "define:undee" without the quote marks into google then you shall see that not am I not only drunk but also