Pit worker given a large fizzy drink (7)
I believe the answer is:
mineral
'fizzy drink' is the definition.
'mineral' can be an answer for 'drink' (I've seen this before). I'm not certain of the 'fizzy' bit.
'pit worker given a large' is the wordplay.
'pit worker' becomes 'miner' (I've seen this before).
'given' is a charade indicator (letters next to each other).
'large' becomes 'L' (eg in clothes sizes).
'miner'+'a'+'l'='MINERAL'
Can you help me to learn more?
(Other definitions for mineral that I've seen before include "Valuable ore" , "Substance that is (usually) inorganic" , "Ore; soft drink" , "Type of spring water" , "Metal ore" .)