TUG AT is a phrase that can be used to describe a type of job. The two crossword solutions for this phrase are PULL and PULLON, both of which have four and six letters respectively. PULL is an action verb that means to apply force in order to move something towards oneself. PULLON is a verb that means to draw or PULL on something, such as clothing. Both of these words can be used to describe the act of tugging at something, which is often used to describe a job that requires physical effort.