had been cluing

• past perfect progressive

  past perfect progressive

  Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.

  of clue.
  clue

  noun

  anything that serves to guide or direct in the solution of a problem, mystery, etc..

Related Words

• cue
• indication
• inkling
• key
• pointer
• proof
• solution
• suggestion
• tip
• trace