Where a taxi turns up in Lancashire (5)
I believe the answer is:
bacup
'lancashire' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'where a taxi turns up' is the wordplay.
'where' becomes 'pu' (I can't explain this - if you can you should give a lot more credence to this answer).
'a taxi' becomes 'cab' ('cab' can be a synonym of 'taxi').
'turns up' shows that the letters should be reversed in order.
'pu'+'cab'='pucab'
'pucab' back-to-front is 'BACUP'.
'in' is the link.
Can you help me to learn more?
(Another definition for bacup that I've seen is " Lancashire town".)