1) Biodegradable pipe material 2) Cookout waste 3) Core 4) Core of an ear 5) Frosty accouterment 6) Kind of pipe 7) Maize core 8) Picnic leftover, often 9) Pipe material 10) Pipe type 11) Potential pipe 12) Rustic pipe Found on https://www.crosswordclues.com/clue/corncob
A corncob is the central core of a maize (Zea mays ssp. mays L.) ear. It is the part of the ear on which the kernels grow. The corn plant`s ear is also considered a `cob` or `pole` but it is not fully a `pole` until the ear is shucked, or removed from the plant material around the ear. Young ears, also called baby corn, can be consumed raw,... Found on http://en.wikipedia.org/wiki/Corncob
a cassette in which each cog is only one tooth larger than the previous one. Also called a straight block. Found on https://www.encyclo.co.uk/local/22514
the elongated woody core in which the grains of an ear of corn are embedded. · a tobacco pipe with a bowl made from a corncob. Found on https://www.infoplease.com/dictionary/corncob