African animal's blunder going over current river (7)

I believe the answer is:

giraffe

I'm a little stuck... Click here to teach me more about this clue!

'african animal's' is the definition.
'giraffe' can be an answer for 'animal's' (I've seen this before). I am not certain of the 'african' bit.

'blunder going over current river' is the wordplay.
'blunder' becomes 'gaffe' (gaffe is a kind of blunder).
'going over' is an insertion indicator.
'current' becomes 'I' (symbol for electric current).
'river' becomes 'r' (abbreviation for river).
'i'+'r'='ir'
'gaffe' placed around 'ir' is 'GIRAFFE'.

Can you help me to learn more?

(Other definitions for giraffe that I've seen before include "Sixteen, mostly neck" , "Tallest land animal" , "wild beast" , "Tall creature" , "Long-necked animal" .)

I've seen this clue in The Telegraph.

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