Fix a fairway

• Do some field work?
• Change the grass
• Lay down new turf
• Work on lawn repair
• Fix, as a green
• Do some lawn repair
• Fix, as a golf green
• Service a sward
• Lay out some more green?

Wiktionary Word definitions in Wiktionary
vb. (context transitive English) To sod again; to cover (a lawn) with fresh sod.