Nouns

(n)clutter, jumble, muddle, fuddle, mare's nest, welter, smothera confused multitude of things
(n)fix, hole, jam, mess, muddle, pickle, kettle of fishinformal terms for a difficult situation“he got into a terrible fix”, “he made a muddle of his marriage”

Verbs

(v)muddle, puddlemake into a puddle“puddled mire”
(v)addle, muddle, puddlemix up or confuse“He muddled the issues”