Hunts, in scrubs (6)
I believe the answer is:
scours
This could be a double definition.
'hunts' is the first definition.
Although both the answer and definition are verbs in their -s form, I can't understand how one could define the other.
'scrubs' is the second definition.
('scour' can be a synonym of 'scrub')
'in' acts as a link.
Can you help me to learn more?
(Other definitions for scours that I've seen before include "Searches thoroughly or cleans abrasively" , "Cleans by rubbing wiht something abrasive" , "Cleans by rubbing with rough material" , "Rubs hard or scrubs" , "Cleans by hard rubbing." .)