Catch on toilet sticks in this makeshift shelter (7)

I believe the answer is:

twigloo

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

'sticks in this makeshift shelter' is the definition.
'twigloo' can be an answer for 'shelter' (I've seen this before). I am unsure of the 'sticks in this makeshift' bit.

'catch on toilet' is the wordplay.
'catch on' becomes 'twig' (synonyms).
'toilet' becomes 'loo' (loo can informally mean a toilet).
'twig'+'loo'='TWIGLOO'

Can you help me to learn more?

(Other definitions for twigloo that I've seen before include "shelter" , "cabin raised in protest?" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app

Connecting...