Not a big turn-out for messing about on the river? (7)
I believe the answer is:
boating
'for messing about on the river?' is the definition.
I can't judge whether this defines the answer.
'not a big turn' is the wordplay.
'turn' indicates an anagram.
'not'+'a'+'big'='notabig'
'notabig' with letters rearranged gives 'BOATING'.
'out' is the link.
Can you help me to learn more?
(Another definition for boating that I've seen is " Travelling on water for pleasure".)
Want a hint initially instead of a full solution?
Install my app