The June 2017 Watchtower tells the experience of a Bible student who was homeless and unkempt, but improved his appearance after being preached to.
Peter began to change. He bathed, neatly
trimmed his beard, and put on the better
clothes that Don offered him. Peter continued to maintain a clean appearance.
So here we see that with a neatly trimmed beard The Watchtower's writers view him as having "a clean appearance". The article also included a before and after drawing, seen here.