On Thursday March 16th 2000, Teamtalk reported that "Norwich City are taking a look at prolific non-league goalscorer Andy Claydon, who has scored 22 for Jewson League side Newmarket Town this season. Duncan Forbes watched the pacy 21 year old in action this week, and Claydon has been invited for a trial next week. He will train with the rest of the senior squad and will be given a reserve team run out in the clash with Brighton's second string. Claydon said: "I am very excited. It's a great opportunity for me. I thought my chance of getting a break had gone." His boss Bobby Shinton calls Claydon "an uncut diamond" and says that Norwich wanted to have him for a trial a month ago but a slight injury delayed his chance to shine." However according to commentators on the Unofficial Norwich City messageboard, Andy had an unimpressive game for the Reserves against Brighton and they would be surprised if he had further outings with the Canaries.

Andy, who has also had a trial with Nottingham Forest, moved on to East Anglian giants Sudbury in the summer of 2000. He remained with Sudbury enjoying great success there, including five Eastern Counties League Champions medals, three FA Vase Finals and helping them into the Ryman League. He made 360 appearances scoring 160 goals.

In June 2007, Sudbury announced that Andy wouldn't be a first choice player for the following season and would understand if he wanted to leave.. and so he did, joining Mildenhall on a two year contract. He moved to Felixstowe and Walton United in February 2008

In June 2009, Andrew signed for Norwich United.