No taxi turns up for sandwich filler? (5)
I believe the answer is:
bacon
'sandwich filler?' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'no taxi turns up' is the wordplay.
'taxi' becomes 'cab' (synonyms).
'turns up' is a reversal indicator.
'no'+'cab'='nocab'
'nocab' backwards is 'BACON'.
'for' is the link.
Can you help me to learn more?
(Other definitions for bacon that I've seen before include "Sizzling" , "Man killed by chicken, some say" , "Author" , "Pig meat N essayist" , "Eg, rashers" .)