Didn't admit to the shack, leaving us to wander about (4,3)
I believe the answer is:
shut out
'didn't admit to' is the definition.
I can't tell whether this definition defines the answer.
'shack leaving us to wander about' is the wordplay.
'shack leaving' becomes 'hut' (I am not sure about this - if you are sure you should believe this answer much more).
'wander' indicates anagramming the letters.
'about' means one lot of letters goes inside another.
'us'+'to'='usto'
'usto' anagrammed gives 'sout'.
'hut' going into 'sout' is 'SHUT-OUT'.
'the' is the link.
Can you help me to learn more?
(Another definition for shut out that I've seen is " Excluded".)