Excited by love galore (1,4)

I believe the answer is:

a gogo

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'galore' is the definition.
Both the definition and answer are adjectives.
Perhaps they are linked in a way I don't understand?

'excited by love' is the wordplay.
'excited' becomes 'agog' (similar in meaning).
'by' means one lot of letters go next to another.
'love' becomes 'o' (love means zero in tennis).
'agog'+'o'='A GOGO'

Can you help me to learn more?

(Other definitions for a gogo that I've seen before include "in spades" , "In abundance (from Fr.)" , "stacks" , "In abundance (informal)" , "in large numbers" .)

I've seen this clue in The Independent.

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