At club level he played with Aghada, Imokilly and St Finbarr's, while he was also a member of the Cork senior hurling team.
After progressing from the juvenile and underage ranks, he went on to win a number of East Cork titles as a dual player.
Cashman also earned selection on the Imokilly divisional hurling team before transferring to the St Finbarr's club in 1982.
[1] Cashman first came to prominence on the inter-county scene as a member of the Cork minor hurling team that won consecutive All-Ireland MHC titles in 1978 and 1979.
[3] After playing in a number of National League games for the senior team earlier in the decade, Cashman made his Munster SHC debut in 1989.