Related Clues:

• Extreme delight
• Choral singer's club
• Encouraging cry, such as the one formed by the ends of 20-, 37-, and 56-Across
• Such pleasure from getting first to the river
• In the jungle each new plant discovered brings joy
• Song to delight
• Shout of welcome for revolutionary monarch
• Gaiety (and a legal term to cover it)
• Shout for food
• Possibly rely on clergyman for the festivities
• Tidy up to hospital's delight
• Joy on Grant's first meeting with Confederate general
• Conviviality of the Gordons' theatre
• The stuff of 21, 15 24 and 10 - girl bottles it
• Song of mirth