Obsolete truck out a kilometre on backstreet blocks? (9)
I believe the answer is:
obstructs
'blocks?' is the definition.
('obstruct' can be a synonym of 'block')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for obstructs that I've seen before include "Prevents or hinders passage" , "Blocks" .)
I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution?
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