Retro swimming pool fashion shot by introduction of flash bulb (8)
I believe the answer is:
daffodil
'introduction of flash bulb' is the definition.
The definition and answer can be both plants as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'retro swimming pool fashion shot by' is the wordplay.
'retro' shows that the letters should be reversed in order (retro is Latin for 'backwards').
'swimming pool' becomes 'lido' (lido is a type of open-air swimming pool).
'fashion shot' becomes 'daff' (I can't justify this - if you can you should give a lot more credence to this answer).
'by' says to put letters next to each other.
'lido' backwards is 'odil'.
'odil' after 'daff' is 'DAFFODIL'.
Can you help me to learn more?
(Other definitions for daffodil that I've seen before include "Flower from bulb" , ""Welsh" flower?" , "Floral emblem of Wales" , "Popular yellow flower of spring - ask Wordsworth" , "National flower of Wales" .)