Awkward call traps one with the wrong mobile (12)
I believe the answer is:
cringeworthy
'awkward call traps one with the wrong mobile' is the definition.
I can't tell whether this definition defines the answer.
'one with the wrong mobile' is the wordplay.
'one' becomes 'criy' (I can't explain this - if you can you should believe this answer much more).
'with' means one lot of letters goes inside another.
'mobile' indicates anagramming the letters.
'the'+'wrong'='thewrong'
'thewrong' with letters rearranged gives 'ngeworth'.
'criy' enclosing 'ngeworth' is 'CRINGEWORTHY'.
Can you help me to learn more?
(Other definitions for cringeworthy that I've seen before include "Severely embarrassing" , "Acutely embarrassing" , "Causing embarrassment" .)