It's a jigsaw grid so number of letters not known... but between 3 and 8
On the wing? Not this chap joining The Gunners....starts R
Some of Edinburgh's corn its leaderless team rejected ...starts S
Still weaving in service, old hat splits ...starts Y
2 is Strae, I think - a Scottish word for straw, corn. It'd be Hearts, an Edinburgh team, with the first letter removed (leaderless) and reversed, 'rejected'.