Swimming in the sea around reef regularly using a snorkel? (9)
I believe the answer is:
breathing
'swimming' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'sea around reef regularly using a snorkel?' is the wordplay.
'sea' becomes 'the blue' (the blue).
'around' indicates the central letters.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'using a snorkel?' becomes 'athing' (I can't justify this - if you can you should believe this answer much more).
The centre of 'theblue' is 'b'.
The alternating letters of 'reef' are 're'.
'b'+'re'+'athing'='BREATHING'
'in the' is the link.
Can you help me to learn more?
(Other definitions for breathing that I've seen before include "could be rough for Hellenes" , "Respiration" , "(Of wine) exposed to fresh air" , "It's inspiring" , "showing a sign of life" .)