Here are the possible solutions for this clue has one clue
Answer
Clue
Relevancy
doesntknowbeans
Clue
Hasn't a clue (oddly enough, since this is a clue)
meta
Clue
Referring to this clue within this clue, e.g.
Definition
(US) concerned with cultural conventions; (of an artistic work) self-referential
answer
Clue
This clue has one
Definition
to say, write, or act in return
etaoin
Clue
"___ shrdlu" (nonsense phrase of old type-setting lore which has an interesting backstory but I can't do it justice in the space of a single clue even a long one like this so yeah it's just kind of a
lowercaseletter
Clue
WHAT THIS CLUE HAS ONE Of
typo
Clue
Thsi clue has one
Thiss clue has one
altogether
Clue
On the whole ... or, when read in two parts, what the answer to each starred clue has