Friendly and agreeable sort of conga line (9)

I believe the answer is:

congenial

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'friendly' is the definition.
(similar in meaning)

'agreeable sort of conga line' is the wordplay.
'conga line' can be anagrammed to 'CONGENIAL'.
Though, I am unsure how the anagram is indicated.

'and' is the link.

Can you help me to learn more?

(Other definitions for congenial that I've seen before include "Harmonious and friendly" , "relaxing" , "Pleasant and agreeable" , "Suited to one's taste" , "Having similar interests" .)

I've seen this clue in The Sunday Times and The Times.

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