The crossword solution for the term 'ON ___ (WITHOUT COMMITMENT)' is SPEC, which stands for 'Short-term Employment Placement Contract'. This type of contract is used when an employer needs to hire someone for a short period of time, usually for a specific project or task. The employer and employee agree to a set amount of time for the job, and the employee is not obligated to stay with the company after the contract ends. This type of contract is beneficial for both parties, as it allows the employer to fill a need without making a long-term commitment, and the employee can gain experience without having to commit to a full-time job.