Can't remember the title of this movie. A woman goes home and finds her imaginary friend from childhood has returned and keeps getting her in trouble.

Sounds like Day-O (http://www.imdb.com/title/tt0104059/)

Drop Dead Fred I am sure of it it has Phoebe Kates in it the guy is crazy weares a green suit and has red hair??

Yea id guess its Drop Dead Fred (1991) (http://www.imdb.com/title/tt0101775/) as well

Drop Dead Fred i am sure of it it has Phoebe Kates in it the guy is crazy weares a green suit and has red hair????

I would say that this has to be the answer by far.

Drop Dead Fred i am sure of it it has Phoebe Kates in it the guy is crazy weares a green suit and has red hair????

That's it! I always pictured carrot top when trying to remember it