About 51 cents for venerated object (5)
I believe the answer is:
relic
'venerated object' is the definition.
(I've seen this in another clue)
'about 51 cents' is the wordplay.
'about' becomes 're' (regarding).
'51' becomes 'LI' (roman numeral).
'cents' becomes 'c' (abbreviation for cents).
're'+'li'+'c'='RELIC'
'for' acts as a link.
(Other definitions for relic that I've seen before include "Survival from an earlier time" , "Fossil" , "Outdated survival" , "Surviving ancient custom" , "Abandoned item" .)