Worn out (5)
'worn out' is the definition.
(tired can mean worn out or fatigued)
This is the entire clue.
(Other definitions for tired that I've seen before include "Worn out" , "Weary, jaded" , "ready for bed" , "Beat" , "Depleted of energy" .)
(Other definitions for jaded that I've seen before include "Bored, sated" , "Weary from excess" , "No longer freshly keen" , "Tired and bored, lacking zest" , "Very tired or fed up" .)
(Other definitions for weary that I've seen before include "spent" , "Flagging" , "Tired - bored" , "flag" , "Ready to drop" .)
'worn out' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for knackered that I've seen before include "Exhausted (slang)" , "Worn out" .)
'worn out' is the definition.
(frazzling is a kind of wearing out)
This is all the clue.
(Other definitions for frazzled that I've seen before include "Worn to rags or tatters, exhausted" , "Completely exhausted" .)
'worn out' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for dog-tired that I've seen before include "Extremely weary" , "Exhausted" , "Worn out" .)