No amateur, Welsh footballer pockets first of bonuses? That's likely (8)
I believe the answer is:
probable
'that's likely' is the definition.
(synonyms)
'no amateur welsh footballer pockets first of bonuses?' is the wordplay.
'no amateur' becomes 'pro' (I've seen this in another clue).
'welsh footballer' becomes 'bale' (footballer Gareth Bale. I am not sure about the 'welsh' bit.).
'pockets' indicates putting letters inside.
'first of bonuses?' becomes 'b' (bst letter of 'bonuses').
'bale' placed around 'b' is 'bable'.
'pro'+'bable'='PROBABLE'
Can you help me to learn more?
(Other definitions for probable that I've seen before include "Person most likely" , "Likely to happen but not certain" , "on the cards" , "Likely to be the case" , "Like to happen" .)