Based on the clue 'cab is a shortened form of this 4 syllable french ...', what is the answer?

Which performer is associated with 'caa'? What is associated with: caan welcomes future son in law hugh grant to the family in this 1999 mob comedy? What is associated with: cab calloway first recorded his song about this moocher in 1931? Based on the clue 'cab drivers came to be called hacks because of thi...', what is the answer? What is referred to by 'cabaret club'? Based on the clue 'cabaret goes back to one of his berlin stories', what is the answer? What is associated with: cabaret was based partly on this 1951 play by john van druten? Based on the clue 'cabbage this other basic salad ingredient are bot...', what is the answer?