Making a big display of climbing the mountains with mum (6)
I believe the answer is:
splash
'making a big display' is the definition.
I can't judge whether this definition defines the answer.
'climbing the mountains with mum' is the wordplay.
'climbing' shows that the letters should be reversed in order (in a down clue, letters climb up).
'the mountains' becomes 'alps' (European mountain range).
'with' means one lot of letters go next to another.
'mum' becomes 'sh' (both are used to tell someone to be quiet).
'alps' written backwards gives 'spla'.
'spla'+'sh'='SPLASH'
'of' is the link.
Can you help me to learn more?
(Other definitions for splash that I've seen before include "Small amount of soda water etc" , "not much rain" , "Make liquid fly around" , "Cause water to fly about in drops" , "Effect of body falling on water" .)