Don't struggle to get the meaning (5)

I believe the answer is:

drift

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

'the meaning' is the definition.
(drift is a kind of meaning)

I cannot understand how the rest of the clue works.

(Other definitions for drift that I've seen before include "Travel without purpose" , "Gist - snow" , "aimless" , "Trend; meaning" , "General meaning or flow" .)

I've seen this clue in The Globe and Mail.

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