"Could be better” (3)

I think it could be either:

Which length description are you looking for?:

3,3

meh

'could be better' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for meh that I've seen before include "Not much cop" , "Unexciting (modern slang)" , "Who cares" , "am I bovvered?" , "expression of indifference" .)

I've seen this clue in The Wall Street Journal.

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