The phrase 'bring up the rear' is a military term that refers to the last person or group in a procession. The crossword solutions for this phrase are TRAIL (5 letters), ARISE (5 letters), LOSE (4 letters), TWERK (5 letters), RISE (4 letters), MOON (4 letters), LAG (3 letters), END (3 letters), GOLAST (6 letters), RUNLAST (7 letters), and STRAGGLE (8 letters). These words all relate to the idea of being at the back of a procession, either literally or figuratively. For example, TRAIL implies following behind, while ARISE and RISE suggest coming out of a lower position. LOSE and LAG refer to falling behind, while TWERK and MOON suggest dancing or goofing off. Finally, END, GOLAST, RUNLAST, and STRAGGLE all imply being the last one in a line.