Think again about wayward son consumed by drink (10)
I believe the answer is:
reconsider
'think' is the definition.
(I know that consider is a is a more specific form of the action of reconsider)
'again about wayward son consumed by drink' is the wordplay.
'again about' becomes 're' ('re' means regarding or about. I am not sure about the 'again' bit.).
'wayward' is an anagram indicator (wayward means out of control or chaotic).
'consumed by' is an insertion indicator (inserted letters get consumed).
'drink' becomes 'cider' (cider is a kind of drink).
'son' is an anagram of 'ons'.
'ons' inserted within 'cider' is 'consider'.
're'+'consider'='RECONSIDER'
Can you help me to learn more?
(Other definitions for reconsider that I've seen before include "Ponder further" , "Have second thoughts" , "Nice orders ( anag.)" , "Think again" .)