English country gentlemen holding answer for realtors (6,6)

I believe the answer is:

estate agents

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'realtors' is the definition.
('estate agent' can be a synonym of 'realtor')

'english country gentlemen holding answer' is the wordplay.
'english country' becomes 'estate' (I can't explain this - if you can you should believe this answer much more).
'gentlemen' becomes 'gents' (gent is a kind of gentleman).
'holding' indicates putting letters inside.
'answer' becomes 'a' (abbreviation eg in Q and A).
'estate'+'gents'='estategents'
'estategents' placed around 'a' is 'ESTATE AGENTS'.

'for' is the link.

Can you help me to learn more?

(Other definitions for estate agents that I've seen before include "Dealers in property" , "People who sell houses" .)

I've seen this clue in The Telegraph.

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