Get overseas phone card containing tungsten (4)
I believe the answer is:
swim
'get overseas phone' is the definition.
I can't tell whether this defines the answer.
'card containing tungsten' is the wordplay.
'card' becomes 'sim' (I've seen this in other clues).
'containing' indicates putting letters inside.
'tungsten' becomes 'W' (W is the chemical symbol for tungsten).
'sim' placed around 'w' is 'SWIM'.
Can you help me to learn more?
(Other definitions for swim that I've seen before include "Go for a dip" , "German submarine" , "Do crawl, perhaps" , "Crawl, e.g." , "Propel oneself in water" .)