Where a taxi turns up in Lancashire (5)
I believe the answer is:
bacup
'lancashire' is the definition.
I know nothing about this answer so I can't tell whether this works.
'where a taxi turns up' is the wordplay.
'where' becomes 'pu' (I am not sure about this - if you are sure you should believe this answer much more).
'a taxi' becomes 'cab' (synonyms).
'turns up' shows that the letters should be reversed in order.
'pu'+'cab'='pucab'
'pucab' back-to-front is 'BACUP'.
'in' acts as a link.
Can you help me to learn more?
(Another definition for bacup that I've seen is " Lancashire town".)