Possible Clues:

• Midas-like grip necessary to get rid of employee?
• Describes precious type in 24 across and most of those in 26 across for those retiring types in Labour
• Parting gift from great ancient workers swimming in the sea
• Large amount of money given to employee leaving company
• Parting gift from 26 across and most of those in 11 across
• Goes over ship's record to study the crew's link to fish - the type produced by Midas as a payoff?
• Farewell that makes good past worker upset?
• After record's brought up, office workers fish for pay-off