Advantage garnered by landed gentry (4)

I believe the answer is:

edge

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

'advantage' is the definition.
(having the edge is having an advantage)

'garnered by landed gentry' is the wordplay.
'EDGE' is hidden in amongst the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for edge that I've seen before include "Rim - move gradually" , "Keenness" , "Rim, lip" , "Move furtively; intense quality" , "Snick - boundary" .)

I've seen this clue in The Times.

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