Crossword Genius

Effusive greeting from happy worker (4,4)

Ross

I believe the answer is:

glad hand

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'effusive greeting' is the definition.
'glad hand' can be an answer for 'greeting' (glad hand is a kind of greeting). I'm not certain of the 'effusive' bit.

'happy worker' is the wordplay.
'happy' becomes 'glad' (synonyms).
'worker' becomes 'hand' (hand is a kind of worker).
'glad'+'hand'='GLAD-HAND'

'from' is the link.

Can you help me to learn more?

(Another definition for glad hand that I've seen is " effusive welcome".)

I've seen this clue in The Times.
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