| DIAGNOSTIC | A symptom used to identify a disease |
| CALLSIGN | (Broadcasting) a combination of letters used to identify a radio or television station (4,4) |
| NEE | Word used to identify a name-dropper |
| NOUN | Word used to identify a person, place or thing (4) |
| THIS | Word used to identify a specific thing |
| COOKIE | Web file used to identify a user (6) |
| HER | Word used to identify a woman |
| EFIT | Digitally generated facial image used to identify a suspect |
| NOUNS | Words used to identify a class of people, places or things (5) |
| DIAGNOSE | Identify (a disease) (8) |
| MISDIAGNOSE | wrongly identify a disease |
| USERNAME | A designation to identify a person on a computer network (8) |
| SPOT | Mark used to identify a species of ladybird eg, two, seven, twenty-two, and so on - and an anagram of 19 across! (4) |
| BEARDLESS | Could be a close shave these days to identify a man with a...er, less bad complexion! (9) |
| MONOCYTE | Tony, a leading oncologist, is working with three chemists at a top clinic in Mamhead to identify a mutated white blood cell (8) |
| GOSHAWK | Golly! A week, to identify a bird of prey? |
| GENETICMARKER | DNA sequence with a known location on a chromosome that can be used to identify individuals or species |
| KITS | In sport, garments used to identify members of a team on a field of play (4) |
| IDCARD | A card or badge used to identify the bearer (2,4) |
| HASHTAG | On social media sites, a word or phrase preceded by the 'number' sign to identify a topic (7) |
