Cold gypsy with goat heading to see old Stones in the round (9)

'stones in the round' is the definition.
(a cromlech is a stone monument)

'cold gypsy with goat heading to see' is the wordplay.
'cold' becomes 'c' (eg on taps).
'gypsy' becomes 'rom' (a Rom is a member of the Roma people).
'with' means one lot of letters go next to another.
'goat' becomes 'lech' (goat can mean a lecher or lech).
'heading to' says to take the initial letters (the head of the word).
The first letter of 'see' is 's'.
'c'+'rom'+'lech'+'s'='CROMLECHS'

'old' is the link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?