If girls get involved with that FC it'll be a stop-go situation (7,6)

I believe the answer is:

traffic lights

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'it'll be a stop-go situation' is the definition.
I can't judge whether this defines the answer.

'if girls get involved with that fc' is the wordplay.
'get involved with' indicates anagramming the letters.
'if'+'girls'='ifgirls'
'that'+'fc'='thatfc'
'ifgirls' anagrammed with 'thatfc' can make 'TRAFFIC LIGHTS'.

Can you help me to learn more?

(Other definitions for traffic lights that I've seen before include "Illuminated road signals" , "Road feature" .)

I've seen this clue in The Guardian.

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