Relates to the pips in giant limes all over the place (4,6)
I believe the answer is:
time signal
'relates to the pips' is the definition.
I can't judge whether this defines the answer.
'giant limes all over the place' is the wordplay.
'all over the place' indicates anagramming the letters.
'giant'+'limes'='giantlimes'
'giantlimes' anagrammed gives 'TIME-SIGNAL'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for time signal that I've seen before include "up-to-the minute sound" , "Electronic indication of the correct hour" , "eg Six pips" , "beeps, perhaps" , "Eg, Greenwich pips" .)