Theory:

Meanings of difficult words from the poem "The Squirrel":
 
S.No
Words
Meanings
1
SquirrelA small animal covered in fur with a long tail. Squirrels climb trees and feed on nuts and seeds
2
Wore  Past tense of wear; to arrange one's hair (in this case, tail) in a particular way
3
Question mark The symbol "\(?\)" used in writing at the end of a phrase or sentence to show that it is a question
4
OvercoatA long thick coat worn in cold weather
5
GrayUS spelling of grey; the colour that is a mixture of black and white
6
TeaseMessing with something or someone in a playful manner