Clue: Fingerprint, often

Answer: CLUE

Length: 4

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Similar Clues:

• Greasy fingerprint, e.g. (SMUDGE with 6 letters)
• Kind of fingerprint (DNA with 3 letters)
• "___ alike!" (as fingerprints) (NOTWO with 5 letters)
• DNA fingerprinting pioneer Jeffreys (ALEC with 4 letters)
• Fingerprint with a twist? (DNA with 3 letters)
• Process for fingerprints (DUST with 4 letters)
• Fingerprint pattern (e.g. LOOP with 4 letters)
• 1894 novel whose title character likes to collect fingerprints (PUDDNHEADWILSON with 15 letters)
• Fingerprint ridge (WHORL with 5 letters)
• Modern "fingerprint" (DNA with 3 letters)