Hard (9)
'hard' is the definition.
(I know that hard can be written as difficult)
This is all the clue.
(Other definitions for difficult that I've seen before include "Requiring much effort" , "Challenging" , "Trying" , "Demanding" , "Hard, not easy" .)
'hard' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for solid that I've seen before include "Firm - sound - reliable" , "Hard and compact" , "Rock-hard" , "Neither liquid nor gas" , "Dense" .)
(Other definitions for die that I've seen before include "Pass away" , "Depart with engraved stamp" , "Cease to live" , "Fail" , "A device used for casting metal" .)
'hard' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for steely that I've seen before include "As hard, or grey, as metal" , "Obdurate" , "With (cold) resolve" , "Inflexibly severe" , "Ruthless" .)