Be effusive in giving us heartfelt thanks (4)

I believe the answer is:

gush

'be effusive' is the definition.
(I've seen this in another clue)

'in giving us heartfelt thanks' is the wordplay.
'in' indicates a hidden word.
'GUSH' is hidden within 'giving us heartfelt thanks'.

(Other definitions for gush that I've seen before include "Spurt" , "Spout like oil-well" , "Be over-effusive" , "Outburst" , "Sudden stream or jet" .)

I've seen this clue in The Globe and Mail.

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