Puzzle 4

Linguistics is the study of __

__ penguins, birds appearing to be wearing helmets

__ Park, Jane Austen's Fanny Price novel

Dress with no visible means of support

An infection that inflames the lungs

Rhyming phrase meaning 'very simple'

The grate or hearth at the base of a chimney

Uptown Funk and 24K Magic singer

A difficult challenge (maybe vertically so)

Six, e.g. a box of eggs

Making you lose confidence, worrying