Crossword puzzle clue "something often put on"

Something often seen on a street corner, briefly ... or, literally, something seen in each corner of this puzzle

Something often put on

Sign denoting that something is perched on something else?

Something mild after something hard

Like something deep fried vis-a-vis something oven broiled, say

Feeling that you've seen something before seen something before

Figure something out, especially something obvious

Something starting something?