Without question a difficulty pulling back loose garment (5)

I believe the answer is:

burqa

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

'difficulty pulling back loose garment' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'without question a' is the wordplay.
'without' becomes 'bur' (I can't justify this - if you can you should believe this answer much more).
'question' becomes 'q'.
'bur'+'q'+'a'='BURQA'

Can you help me to learn more?

(Another definition for burqa that I've seen is " religious garb".)

I've seen this clue in The Times.

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