Clue: Speed test providers, briefly

Answer: ISPS

Length: 4

---

Similar Clues:

• Likely result of failing a Breathalyzer test, briefly (DUI with 3 letters)
• Cardiology tests, briefly (EKGS with 4 letters)
• Math test question, briefly (PROB with 4 letters)
• Speed test (RACE with 4 letters)
• Speedy fliers of old, briefly (SSTS with 4 letters)
• Heart test's printout, briefly (ECG with 3 letters)
• Brain tests, briefly (EEGS with 4 letters)
• Heart test, briefly (ECG with 3 letters)
• Retired speedsters, briefly (SSTS with 4 letters)
• Brain-wave test, briefly (EEG with 3 letters)