In front, climbing on foot in the Dutch city (5)
I believe the answer is:
delft
'the dutch city' is the definition.
'in front climbing on foot' is the wordplay.
'in' means one lot of letters goes inside another.
'front climbing on' becomes 'delt' (I can't explain this - if you can you should give a lot more credence to this answer).
'foot' becomes 'f' (abbreviation).
'delt' going around 'f' is 'DELFT'.
'in' is the link.
Can you help me to learn more?
(Other definitions for delft that I've seen before include "Dutch town famous for ceramics" , "South Holland pottery town" , "English or Dutch glazed earthenware" , "Glazed earthenware, usually white with blue decoration" , "Netherlands town famous for its pottery" .)