Crossword Genius

... but two in this case find Peterhead has atmosphere (4)

Ross

I believe the answer is:

pair

I'm a little stuck... Click here to teach me more about this clue!

'but two in this case' is the definition.
The definition and answer can be both quantities as well as being singular nouns.
Perhaps you can see a link between them that I don't see?

'peterhead has atmosphere' is the wordplay.
'peterhead' becomes 'p' (head letter of 'peter').
'has' means one lot of letters go next to another.
'atmosphere' becomes 'air' (synonyms).
'p'+'air'='PAIR'

'find' is the link.

Can you help me to learn more?

(Other definitions for pair that I've seen before include "Two of a kind, as in cards" , "Twosome" , "how braces come" , "Twins" , "Agreement to avoid division" .)

I've seen this clue in The Irish Independent.
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