The answer to the first clue is a six letter word,add a letter to the word to give the answer to the second clue eg;annoy a close relative.Answer= Bother/Brother.
1)A modern pop singer who used to hunt for a living.
2)Was very scruffy but still pulled.
3)Put in to some kind of order then blew a fuse
4)Reduces cheese to small strips then goes in a circle