Crossword Genius

Trade's somewhat erratic if far too westward-looking (7)

Ross

I believe the answer is:

traffic

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

'trade's' is the definition.
(I know that traffic is a type of trade)

'somewhat erratic if far too westward-looking' is the wordplay.
'TRAFFIC' is hidden backwards within the letters.
However, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for traffic that I've seen before include "Vehicles coming and going" , "What uses road" , "Vehicles moving on public highways" , "used cars" , "Movement of vehicles" .)

I've seen this clue in The Independent.
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