Giving away 10 free points just say one secret that's all you really have 2 do lol

Thanks for the points

Explanation:

My middle names are Douglas Dale.  : )

my favorite is blue.

your word would be isle.

isle is an island or peninsula especially a small one.

if you add the letter "a" you get aisle, which is a passage between 2 rows of something like chairs, shelves, or something else.