Lapdog to chow down nothing but tea (5)
I believe the answer is:
pekoe
'tea' is the definition.
(pekoe is a kind of tea)
'lapdog to chow down nothing' is the wordplay.
I cannot really see how this works, but
'nothing' could be 'o' (O resembles 0) and 'o' is found in the answer.
The remaining letters 'peke' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'but' is the link.
Can you help me to learn more?
(Other definitions for pekoe that I've seen before include "High quality black tea" , "brew" , "Thin mark; run naked" , "Scented black tea" , "High-quality black tea" .)