Runny glue a shilling? I’m stuck for a name for it! (11)
I believe the answer is:
thingumabob
'i'm stuck for a name for it' is the definition.
I can't tell whether this definition defines the answer.
'runny glue a shilling?' is the wordplay.
'runny' becomes 'thin' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'glue' becomes 'gum' (synonyms).
'shilling?' becomes 'bob' (I've seen this in another clue).
'thin'+'gum'+'a'+'bob'='THINGUMABOB'
Can you help me to learn more?
(Other definitions for thingumabob that I've seen before include "I've forgotten its name" , "unnamed item" , "Doofer" .)