Thinks of alcoholic drinks outside on street initially (9)

'thinks' is the definition.
(considering is a kind of thinking)

'alcoholic drinks outside on street initially' is the wordplay.
'alcoholic drinks' becomes 'ciders' (cider is a kind of drink. I am not sure about the 'alcoholic' bit.).
'outside' is an insertion indicator (some letters go outside others).
'initially' indicates taking the first letters.
The initial letter of 'street' is 's'.
'on'+'s'='ons'
'ciders' going around 'ons' is 'CONSIDERS'.

'of' acts as a link.

Can you help me to learn more?