14a) Jewish mentor mentor craving sandwiches (3). R?V. Rav or Rev? I can't parse it.
17a) Bowled in match between extended families (6). Tribal? Can't parse that one either.
rav
rɒv/
nounJUDAISM
a rabbi, especially one who holds a position of authority or who acts as a personal mentor.
(in orthodox Judaism) a title of respect and form of address preceding a personal name.
noun: Rav