Oddly ignored odour before booze consumed with gusto (3,2)
I believe the answer is:
dug in
'consumed with gusto' is the definition.
I can't judge whether this definition defines the answer.
'oddly ignored odour before booze' is the wordplay.
'oddly ignored' means one should take alternating letters (letters in odd-numbered positions are removed).
'before' says to put letters next to each other.
'booze' becomes 'gin' (gin is a kind of booze).
The alternating letters of 'odour' are 'du'.
'du'+'gin'='DUG IN'
Can you help me to learn more?
(Another definition for dug in that I've seen is " Firmly established".)