They temporarily secure a levy, we hear (5)
I believe the answer is:
tacks
'they temporarily secure a' is the definition.
The definition suggests an adverb but the answer is not.
'levy we hear' is the wordplay.
'levy' becomes 'tax' (taxing is a kind of levying).
'we hear' shows a homophone (sound like).
'tax' sounds like 'TACKS'.
Can you help me to learn more?
(Other definitions for tacks that I've seen before include "Shorts nails with big heads" , "a few points" , "Small broad-headed nails" , "They secure" , "Fixes" .)