The Reds have been linked with the former Swansea and Hull man, with Sheffield United also keen on the £6 million star.
Now, it has emerged that Stoke are willing to let the 30-year-old leave for free during the transfer window.
Having failed to win promotion back to the Premier League, Stoke are now having to slash their budget.
Clucas is among the club’s highest-earning players and Stoke him off the wage bill.
The former Mansfield and Chesterfield star made 26 appearances for the Potters last season as they finished 17th in the league.
Earlier in his career, the player featured on the flanks. Lately, however, he’s become more accustomed to playing in the middle of the park.
Clucas captained Michael O’Neill’s team on occasions last season and is a respected member of the team.
Forest will certainly require one or two midfielders this summer. Ryan Yates and Cafu are both under contact but do similar jobs.
Jack Colback and Harry Arter are down the pecking order, whilst James Garner has gone back to Manchester United after his loan.
Available on a free, other clubs could declare their interest in such a proven Championship performer.
Clucas to Forest: Decision time for the Reds
Some Championship clubs are busy doing business already and things could intensify in the coming weeks.
Clucas becoming available of a free could see Forest make their move for the player.
At 30, he might not be a great long-term fix but he does know his way around the Championship.
Clucas boasts a decent left foot and the versatility to operate in a number of positions.
It is thought Clucas earns £35,000-a-week. There is absolutely no chance Forest will pay him that and he’ll need to take a considerable wage drop.
If a sum was needed to prise him away from Stoke, the sensible decision would be to look elsewhere.
On a free, however, there might just be some value in adding Clucas to the Forest ranks.