Crossword Genius

One following second speaker (7)

Ross

I believe the answer is:

stalker

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'one following' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'second speaker' is the wordplay.
'second' becomes 's' (common abbreviation).
'speaker' becomes 'talker' (synonyms).
's'+'talker'='STALKER'

Can you help me to learn more?

(Other definitions for stalker that I've seen before include "Obsessive follower" , "One harassing celebrity" , "Man who follows and intimidates a woman" , "Someone following another, sneakily" , "Obsessive harasser" .)

I've seen this clue in The Guardian.
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