twyndyllyngs - means twins (you owe me for this one - it took well over 2 hours to hunt this word down!)
overabundant
The word "tattletale" contains the letter T three times.
A teapot contains tea. The word teapot begins and ends with the letter t.
zygotes
Cultivate.
The word is teapot. It begins and ends with the letter T and contains tea.
The word is teapot. The word starts and ends with the letter t. The teapot contains tea.
One word that fits your criteria is "distant." It starts with the letter 'd,' ends with 't,' and contains seven letters.
Ditty, ditsy, dotty
Mistletoe.
neglect - target i hope it helps...
There are no English word that contains all those letters, but here are some five-letter words: netts, spent, tents