good question - and it happened in testing
you just say the same clue - and that then leads to an interesting discussion about whether you both mean the same thing, or was one copying the other. Makes for a perfectly good game dynamic - if the clue was crashingly obvious it reinforces it for the gooseberry - if it was subtle then both people are trying to work out if the other knows without giving it away. the Q&A after the clue-giving is the most fun, and repeating the same clue doesn't reduce that
good question - but given it happens (particulalry the first time a group plays, before they discover they need to get subtle) I addressed it in the rules
Thanks for the thoughtful response--makes perfect sense. Gooseberry sounds like a lot of fun! I'm hoping to have someone pick up and send me a copy from Essen.