I am checking the lyrics for a track of music in which the words 日の跡のささくれ are repeated in two different lines, I know the meaning of words, but the meaning of the sentence is still vague for me.
Japanese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Japanese language. It only takes a minute to sign up.Sign up to join this community
Let's look at the pieces of your phrase.
Given the context in your two example lines, it sounds like the singer is describing small and slightly painful wounds left over as aftereffects of certain days, presumably using the term "hangnail" as a poetic allusion to a stinging emotional hurt.