Second choice for variety (9)

I believe the answer is:

selection

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'variety' is the definition.
(I know that selection is a type of variety)

'second choice for' is the wordplay.
'second' becomes 's' (common abbreviation).
'choice' becomes 'elect' (I've seen this in other clues).
'for' becomes 'ion' (I am not sure about this - if you are sure you should believe this answer much more).
's'+'elect'+'ion'='SELECTION'

Can you help me to learn more?

(Other definitions for selection that I've seen before include "Choice, pick" , "Act of choosing" , "Horse tipped for betting" .)

I've seen this clue in The Telegraph.

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