Crossword Genius

ASEAN capitals developed very slowly (2,1,6,4)

Ross

I believe the answer is:

at a snails pace

'very slowly' is the definition.
(moving at a snail's pace is moving slowly)

'asean capitals developed' is the wordplay.
'developed' indicates an anagram.
'asean'+'capitals'='aseancapitals'
'aseancapitals' is an anagram of 'AT A SNAILS PACE'.

(Another definition for at a snails pace that I've seen is " Very slowly".)

I've seen this clue in The Times.
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