Real Dictionary

fix up
phrasal verb: If you fix someone up with something they need, you provide it for them.
phrasal verb: If you fix something up, you arrange it.
phrasal verb: If you fix something up, you do work that is necessary in order to make it more suitable or attractive.

fix up in American English
to arrange a meeting or date for
to arrange for
to repair, mend, remedy, etc.

fix up in British English
to arrange

fix-up in American English
noun: repair; improvement