Send abroad record gold -- 500 tons (about) (6)
I believe the answer is:
deport
'send abroad' is the definition.
(I've seen this in another clue)
'record gold 500 tons about' is the wordplay.
'record' becomes 'ep' (abbreviation for extended play record).
'gold' becomes 'or' ('or' is the heraldic name for gold).
'500' becomes 'D' (Roman numeral for 500).
'tons' becomes 't'.
'about' is an insertion indicator.
'd'+'t'='dt'
'ep'+'or'='epor'
'epor' going inside 'dt' is 'DEPORT'.
(Other definitions for deport that I've seen before include "Expel (a foreigner)" , "conduct rarely seen nowadays?" , "Evict an alien" , "Exile" , "Eject from country" .)