Gives a brief account of tot with mum on hikes? (10)

'gives a brief account' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'tot with mum on hikes?' is the wordplay.
'tot' becomes 'sum' (synonyms).
'with' says to put letters next to each other.
'mum' becomes 'ma' (ma can mean mother).
'on' says to put letters next to each other.
'hikes?' becomes 'rises' ('rise' can be a synonym of 'hike').
'sum'+'ma'+'rises'='SUMMARISES'

'of' acts as a link.

Can you help me to learn more?