Concerned with growth on bank charge (6)

I believe the answer is:

onrush

'charge' is the definition.
(I've seen this before)

'concerned with growth on bank' is the wordplay.
'concerned with' becomes 'on' (I've seen this in other clues).
'growth on bank' becomes 'rush' (plant that grows on river banks).
'on'+'rush'='ONRUSH'

(Other definitions for onrush that I've seen before include "Forceful forward flow" , "Forward charge of Hurons" , "sudden swoop" , "Stampede" , "Career" .)

I've seen this clue in The Times.

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