imperative form of "dar" is "dé" with an accent to differentiate it from "de" the preposition, "déme" also needs an accent. However, I've heard others say that since "deme" can't be confused with anything, it needs no accent.

What is the difference between Este and Esté?

You know, the rule states that "if the stress is in the last syllable and it ends in vowel, n or s, you must write the accent". Besides, está and esté are forms of the verb estar , whereas esta and este are demonstratives or pronouns. Some examples: Esta mesa está aquí.

Does Dele have an accent mark?

Dele is from Milton Keynes and has a middle class London accent.