Mild-mannered (6)

I believe the answer is:
placid
(Other definitions for placid that I've seen before include "Calm; Lake" , "Cool and unruffled" , "Collected" , "Calm of nature" , "Not easily upset or excited" .)
I believe the answer is:
placid
(Other definitions for placid that I've seen before include "Calm; Lake" , "Cool and unruffled" , "Collected" , "Calm of nature" , "Not easily upset or excited" .)