A left-over toy boy maybe? (5)

I believe the answer is:

lover

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'toy boy maybe?' is the definition.
I can't tell whether this definition defines the answer.

'a left-over' is the wordplay.
'a left' becomes 'L' (common abbreviation).
'l'+'over'='LOVER'

Can you help me to learn more?

(Other definitions for lover that I've seen before include "toy boy" , "Inamorato" , "Lothario" , "Romeo (or Juliet)" , "Suitor" .)

I've seen this clue in the Evening Standard.

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