Crossword Genius

Become scared and burp babies? (3,3,4,2)

Ross

I believe the answer is:

get the wind up

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

'burp babies?' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'become scared and' is the wordplay.
I cannot really understand how this works, but
'become' could be 'get' (synonyms) and 'get' is located in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for get the wind up that I've seen before include "Become nervous" , "Become frightened" , "feel anxious" .)

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