Famous disabled London columnist? (6)

I believe the answer is:

nelson

'famous disabled london columnist?' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

(Other definitions for nelson that I've seen before include "Horatio or Mandela?" , "British naval hero" , "'England expects' admiral" , "Sea-lord who loved Lady Hamilton" , "Tar" .)

I've seen this clue in The Guardian.

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