Have tired muscles (4)
I believe the answer is:
ache
(Other definitions for ache that I've seen before include "Pine" , "Dull prolonged pain" , "Nagging pain" , "A dull lingering pain" , "Persistent dull pain" .)
I believe the answer is:
ache
(Other definitions for ache that I've seen before include "Pine" , "Dull prolonged pain" , "Nagging pain" , "A dull lingering pain" , "Persistent dull pain" .)