Thousands see the public notices (5)
I believe the answer is:
loads
'thousands' is the definition.
The answer and definition can be both quantities as well as being plural nouns.
Perhaps you can see an association between them that I don't see?
'see the public notices' is the wordplay.
'see' becomes 'lo' ('lo' is an archaic exclamation meaning 'look!').
'the public notices' becomes 'ads' (I've seen this in another clue).
'lo'+'ads'='LOADS'
Can you help me to learn more?
(Other definitions for loads that I've seen before include "a lot" , "great deal" , "Masses; cargoes" , "Oodles (informal)" , "things to be carried" .)