Clammer is a word that is mostly used to describe a noise. If you are looking for synonyms to replace this word, there are a few options. First, you may consider using the word "clatter" which can bring to mind a loud, jarring noise. Another option is to use the word "clangor," which brings to mind a harsh, metallic sound. If you are looking for something more general, you may want to use the word "racket," which just means any loud and disturbing noise. Whatever word you choose, just make sure it accurately describes the sound you are trying to express.