Crossword Genius

Reportedly obstruct some countries (4)

Ross

I believe the answer is:

bloc

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'reportedly obstruct some countries' is the definition.
I can't judge whether this defines the answer.

'reportedly obstruct' is the wordplay.
'reportedly' shows a homophone (sound like).
'obstruct' becomes 'block' (blocking is a kind of obstructing).
'block' sounds like 'BLOC'.

Can you help me to learn more?

(Other definitions for bloc that I've seen before include "Group acting together" , "Group with a common policy" , "Combination of parties or countries" , "Allied country group" , "People cooperating" .)

I've seen this clue in The Daily Express and The Mirror.
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