Own silver on table at last (5)
I believe the answer is:
agree
'own' is the definition.
(thesaurus)
'silver on table at last' is the wordplay.
'silver' becomes 'ag' (Ag is the chemical symbol for silver).
'on' becomes 're' ('on' can be mean 'with reference to'**).
'at last' says to take the final letters.
The last letter of 'table' is 'e'.
'ag'+'re'+'e'='AGREE'
(Other definitions for agree that I've seen before include "Go along with" , "Be of one mind" , "Accord, match" , "concede" , "Eager (anag)" .)