Shrink lowerer? (5)
I believe the answer is:
cower
'shrink' is the definition.
(shrink can mean to cower from something)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for cower that I've seen before include "Bend in fear" , "Cringe in fear" , "Crouch in fear" , "Cringe, grovel" , "Quail" .)