Spots cable getting caught (6)

I believe the answer is:

flecks

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

'spots' is the definition.
(I know this)

I don't understand how the remainder of the clue works.

(Other definitions for flecks that I've seen before include "spots" , "Streaks" , "Specks, small bits" , "Very small patches of colour" .)

I've seen this clue in The Irish Times.

Want a hint initially instead of a full solution? Install my app