The first to walk like a goose? Nonsense (7)
I believe the answer is:
twaddle
'goose? nonsense' is the definition.
'twaddle' can be an answer for 'nonsense' (informal term for nonsense or rubbish). I am not certain of the 'goose?' bit.
'the first to walk' is the wordplay.
'the first to' becomes 't' (1st letter of 'to').
'walk' becomes 'waddle' (waddling is a kind of walking).
't'+'waddle'='TWADDLE'
'like a' is the link.
Can you help me to learn more?
(Other definitions for twaddle that I've seen before include "Rubbish" , "Hot air" , "Trivial speech/writing" , "Foolish speech" , "tripe" .)