Sunday Times Prize Crossword 4821 Sunday October 21St 2018

[Mikejas]

8d Hum when tough vocabulary's no good (4) R?E? (Possibly REEK = HUM is GREEK minus G but I'm missing the vocabulary reference)

[Lie-in King]

G)Reek - no 'g(ood)' in "It's all Greek..." (tough vocabulary)

[Toorak]

Greek is the vocabulary/language

[Togo]

It's all Greek to me. :))

[Mikejas]

Thanks people. Getting it now.