Crossword Genius

Opening exchange to the front (9)

Ross

I believe the answer is:

ventrally

'to the front' is the definition.
(ventral means relating to the front)

'opening exchange' is the wordplay.
'opening' becomes 'vent' (vent is a kind of opening).
'exchange' becomes 'rally' (rally is a kind of exchange).
'vent'+'rally'='VENTRALLY'

I've seen this clue in The Times.
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