I got "owner" because the next one is "own" and the clue is TAKE AWAY TWO LETTERS and if you take off "-er" then you get "own."
Following those rules, the correct answer is "shown."
..
A four letter word meaning the foundation of something is base.
have
Pail is something children play with.
have
An Acrostic
The 5 letter word is "shown". Add the letter n to the word show.
place something in an envelope together with a letter
A four letter word meaning the foundation of something is base.
Urge
hill
have
One answer could be "chair" (hair, air).
A ten letter word for something that occurs could be an occurrence or happenings.
Generic means something that is not have a specialty, something that is generic. Generic means ordinary, nonspecific. It is similar to others in the same group.
unaided
Perhaps 'gist'? As in, "to get the gist of something"?
The "enc." or "encl." notation at the bottom of a letter means that something is enclosed with the letter.