Harry losing place shivers (4)
I believe the answer is:
ague
'shivers' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for ague that I've seen before include "Fit of the shakes" , "Complaint" , "Chills and fever" , "Malaria, for example" , "Fever with shivers" .)