Benson spent eight weeks on the UK Singles Chart in 1975 with his own composition, "Don't Throw It All Away".
There are also a number of reggae versions that include a dancehall style cut by Barrington Levy.
Benson had previously written a finalist for the 1974 UK competition, finishing last with the song "Someday", one of the six shortlisted entries performed by Olivia Newton-John.
In 1970, Benson's composition "Can't Afford to Lose", recorded by Jon Lukas, made it to the top 40 charts in the UK and some other European territories.
It also occupied the top place in the pop charts in Lebanon for a full month, holding back the Beatles' "The Long and Winding Road" from reaching the No.