One feels for certain six-footers (7)

I believe the answer is:

antenna

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'one feels' is the definition.
(an antenna feels things)

I don't understand the rest of the clue.

(Other definitions for antenna that I've seen before include "Aerial - insect feeler" , "What detects signals" , "connected to 41?" , "Insect's feeler" , "Insect's sensory appendage" .)

I've seen this clue in The Sun.

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