Crossword Genius

A worry, having to stuff something in a clue? (7)

Ross

I believe the answer is:

anagram

'something in a clue?' is the definition.
(cryptic crossword clues often use anagrams)

'a worry having to stuff' is the wordplay.
'worry' becomes 'nag' (nagging is a kind of worrying).
'having' means one lot of letters go next to another.
'to stuff' becomes 'ram' (ram can mean to stuff or push).
'a'+'nag'+'ram'='ANAGRAM'

(Other definitions for anagram that I've seen before include "Word that rearranges another's letters" , "Word rearranging another's letters" , "Word arranged from the letters of another" , "pouring the tea?" , "Argue the point" .)

I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.