Brimmed hat with an indented crown (6)
(Other definitions for trilby that I've seen before include "Impressionable singer" , "one by du Maurier?" , "A man's hat or novel by du Maurier" , "Felt hat with a creased crown" , "Book by George du Maurier - hat" .)
(Other definitions for recess that I've seen before include "Find niche" , "Temporary break from work" , "break needed!" , "Small set-back space" , "Space set back in wall" .)
(Other definitions for fedora that I've seen before include "Type of hat" , "Read of (anag) - brimmed felt hat" , "O, Fred, a hat becomes you" , "Felt hat with a creased crown" , "Felt hat, dented lengthwise" .)
(Other definitions for prised that I've seen before include "Forced open with leverage" , "Forced open with a lever" , "Jemmied, levered" , "Levered open by spider" , "Levered (forcibly)" .)