Length (4)
'length' is the definition.
(I have seen 'A length ' mean 'yard' so perhaps 'length' could also mean 'yard')
This is the entire clue.
(Other definitions for yard that I've seen before include "3 feet" , "Old unit of length" , "American garden" , "short distance" , "area behind the house" .)
'length' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for span that I've seen before include "Bridge or range" , "Width of pans" , "Width of wings" , "Distance or interval between two points" , "Interval; pair of yoked oxen" .)
'length' is the definition.
(I know that length can be written as distance)
This is all the clue.
(Other definitions for distance that I've seen before include "A far-off point" , "to make big winning margin" , "Range" , "Space between things" , "Length between points - remoteness" .)