I love the wordplay, but I really dislike the single rhyme. If you replaced 'fear' by any other word, this would be awesome. I still like it because of the wordplay, and the two following stanzas are nice and neat. However that one rhyme grates against the ear. I like this better than some of your other pieces though. Keep on.

the title immediately got my attention. and the second line has a wolf howling. I like :D Hopeful and comforting. Interesting how the 'fearful' wolf howl is hopeful and comforting at the end. Smiling in the face of fear is the best way to face it. Very well done.