QUOTE(stace!-clarinet @ Jun 4 2009, 08:33 PM)

Does anyone have any pointers or tips about learning to improvise?
Listen, listen and listen some more. Jazz musicians are jazz fans and also eternal jazz students themselves. Find yourself a favourite player and try to mimick his/her sound and managable bits of their style.
Might I suggest Charlie Parker, Sonny Stitt, Johnny Hodges, Alan Barnes, Dave Sanborn, Eric Marienthal, Phil Woods (it's him playing the solo on Billy Joel's 'Don't Go Changing').