Crossword Genius

A poem's positive points (6)

Ross

I believe the answer is:

anodes

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

'positive points' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'a poem's' is the wordplay.
'a' becomes 'an'.
'poem's' becomes 'ode's' (ode is a kind of poem).
'an'+'odes'='ANODES'

Can you help me to learn more?

(Other definitions for anodes that I've seen before include "They help current entry" , "Positively charged conductors" , "Positive electrodes" , "Sea don (anag.)" , "Negative terminals of primary cells" .)

I've seen this clue in The Guardian, The Globe and Mail and The Telegraph.
Want a hint initially instead of a full solution? Install my app