invisible
energy empathy Emily
Start
keeper
'Deflect'
Bring
shown
deter
Someone could dress as an umpire. The costume begins with the letter U.
apex
Likely candidate is the word: Inform.
Wrap is a covering. Walled is an enclosure.
Some seven letter nouns that start with D and with N are:denizendictiondisdaindishpandisdaindolphindragoondungeondustbindustpan