A bit of a queue circle us for something wet and watery! (7)
I believe the answer is:
aqueous
'watery' is the definition.
(I've seen this before)
'a bit of a queue circle us' is the wordplay.
'bit of a queue' becomes 'que' (I can't justify this - if you can you should give a lot more credence to this answer).
'circle' becomes 'O' (O is a circle).
'a'+'que'+'o'+'us'='AQUEOUS'
'for something wet and' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for aqueous that I've seen before include "Holding water" , "Watery" , "Type of humour" , "Dissolved in water" , "Containing water" .)