Dull walker (10)

I believe the answer is:

pedestrian

I believe this is a double definition.

'dull' is the first definition.
(similar in meaning)

'walker' is the second definition.
(synonyms)

(Other definitions for pedestrian that I've seen before include "Unimaginative" , "Unexciting" , "Walker; prosaic" , "nothing much to write home about" , "wearer of leather?" .)

I've seen this clue in The Guardian and The Times.

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