Crossword Genius

In Congo, age dreadfully, like some greyhounds? (5-5)

Ross

I believe the answer is:

ocean-going

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

'in congo age dreadfully like some greyhounds?' is the definition.
I can't tell whether this definition defines the answer.

'in congo age dreadfully' is the wordplay.
'dreadfully' indicates anagramming the letters (a dreadful spelling).
'in'+'congo'+'age'='incongoage'
'incongoage' is an anagram of 'OCEAN-GOING'.

Can you help me to learn more?

(Other definitions for ocean-going that I've seen before include "Like large ships" , "Suited to the high seas" , "Capable of crossing seas" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app