Crossword Genius

Cross-examine gunner out of sorts (5)

Ross

I believe the answer is:

grill

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'cross-examine' is the definition.
(thesaurus)

'gunner out of sorts' is the wordplay.
'gunner' becomes 'gr' (I can't explain this - if you can you should give a lot more credence to this answer).
'out of sorts' becomes 'ill' (I've seen this before).
'gr'+'ill'='GRILL'

Can you help me to learn more?

(Other definitions for grill that I've seen before include "Cooking device" , "Do well" , "Screen" , "Question aggressively" , "pump" .)

I've seen this clue in the Sydney Morning Herald.
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