Storyline that connects with readers (6)

I believe the answer is:

thread

I'm a little stuck... Click here to teach me more about this clue!

'storyline' is the definition.
(I've seen this before)

'connects with readers' is the wordplay.
'THREAD' is hidden within the letters.
But, I'm unsure how the hidden word is indicated.

'that' is the link.

Can you help me to learn more?

(Other definitions for thread that I've seen before include "Dearth of stitching material" , "Element in story" , "'Strand of cotton, silk etc (6)'" , "What sewer takes" , "Cord - Internet chat room discussion" .)

I've seen this clue in The Telegraph.

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.