Clue: Dress right to speak about mean poet (6,6)
Answer: ROBERT LOWELL
Explanation: Definition: poet
**ROBE** (dress) + **R**(ight) + **TELL** (speak) "about" **LOW** (mean) 
*Robert Lowell (1917-1977) was a New England poet (have to admit that I'm not into poetry, so he was a new one to me).