The 28-year-old, who left Coventry in the summer, had reportedly attracted the interest of a host of Championship clubs.
However, according to Sky Sports News, Charlton have emerged as the favourites to land the Northern Ireland international.
Clingan has 33 international caps to his name.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Sheffield UnitedSheff Utd | 22 | 15 | 5 | 2 | 32 | 11 | 21 | 48 |
| 2 | Leeds UnitedLeeds | 22 | 13 | 6 | 3 | 41 | 15 | 26 | 45 |
| 3 | Burnley | 22 | 12 | 8 | 2 | 28 | 9 | 19 | 44 |
| 4 | Sunderland | 22 | 12 | 7 | 3 | 34 | 18 | 16 | 43 |
| 5 | Blackburn RoversBlackburn | 21 | 11 | 4 | 6 | 25 | 18 | 7 | 37 |
| 6 | Middlesbrough | 22 | 10 | 5 | 7 | 38 | 28 | 10 | 35 |
| 7 | West Bromwich AlbionWest Brom | 22 | 8 | 11 | 3 | 26 | 16 | 10 | 35 |
| 8 | Watford | 21 | 10 | 4 | 7 | 30 | 28 | 2 | 34 |
| 9 | Sheffield WednesdaySheff Weds | 22 | 9 | 5 | 8 | 28 | 30 | -2 | 32 |
| 10 | Millwall | 21 | 7 | 7 | 7 | 21 | 18 | 3 | 28 |
| 11 | Swansea CitySwansea | 22 | 7 | 6 | 9 | 24 | 24 | 0 | 27 |
| 12 | Bristol City | 22 | 6 | 9 | 7 | 26 | 28 | -2 | 27 |
| 13 | Norwich CityNorwich | 22 | 6 | 8 | 8 | 37 | 34 | 3 | 26 |
| 14 | Queens Park RangersQPR | 22 | 5 | 10 | 7 | 23 | 28 | -5 | 25 |
| 15 | Luton TownLuton | 22 | 7 | 4 | 11 | 25 | 38 | -13 | 25 |
| 16 | Derby CountyDerby | 22 | 6 | 6 | 10 | 27 | 28 | -1 | 24 |
| 17 | Coventry CityCoventry | 22 | 6 | 6 | 10 | 28 | 34 | -6 | 24 |
| 18 | Preston North EndPreston | 22 | 4 | 11 | 7 | 22 | 29 | -7 | 23 |
| 19 | Stoke CityStoke | 22 | 5 | 7 | 10 | 23 | 30 | -7 | 22 |
| 20 | Portsmouth | 20 | 4 | 8 | 8 | 25 | 35 | -10 | 20 |
| 21 | Hull City | 22 | 4 | 7 | 11 | 21 | 31 | -10 | 19 |
| 22 | Cardiff CityCardiff | 21 | 4 | 6 | 11 | 19 | 34 | -15 | 18 |
| 23 | Oxford UnitedOxford Utd | 21 | 4 | 6 | 11 | 21 | 37 | -16 | 18 |
| 24 | Plymouth ArgylePlymouth | 21 | 4 | 6 | 11 | 22 | 45 | -23 | 18 |
| > Championship Full Table | |||||||||
