The term INVESTIGATOR, AT TIMES can be broken down into two parts: INVESTIGATOR and AT TIMES. INVESTIGATOR is a job title that refers to someone who investigates crimes or other matters of public interest. AT TIMES is an expression that means occasionally or sometimes. Therefore, the crossword solution for INVESTIGATOR, AT TIMES is TAIL, which is a four-letter word that means to follow or track someone or something. This could refer to an INVESTIGATOR following a suspect or tracking down evidence.