Knocker provided last of all (5)
I believe the answer is:
gavel
'knocker' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'provided last of all' is the wordplay.
'provided' becomes 'gave' (giving is a kind of providing).
'last of' says to take the final letters.
The final letter of 'all' is 'l'.
'gave'+'l'='GAVEL'
Can you help me to learn more?
(Other definitions for gavel that I've seen before include "Mason's hammer" , "An auctioneer's wooden hammer" , "equipment for auctioneer" , "Judge's hammer" , "Ceremonial mallet" .)