very very tricky hints, Mith, I've been having to research! (You know you're addicted to the barrowdowns when...

)
Could it possibly be a
tarpon and the downer be
tar-ancalime?
...Of course I'm having to disregard the rest of the question for that to be true
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"Loo, what sholde a man in thyse dayes now wryte, 'egges' or 'eyren'?" - Caxton, Eneydos