Will an agent help me if I don't get on with my publisher or editor?

Will an agent help me if I don't get on with my publisher or editor?

Derek Johns (Managing Director - AP Watt Literary Agency) gives expert video advice on: How long does it take to go from finding an agent to getting published?; What happens when a book is accepted for publication?; What should I do if a publisher asks me to make revisions before they accept my submission? and more...

It's an important part of an agent's task to help authors get on with their publishers and when problems arise, to smooth them over. Quite often an agent is the mediator between the author and publisher.