Some animal lovers found everywhere (3,4)
I believe the answer is:
all over
'everywhere' is the definition.
(I've seen this before)
'some animal lovers found' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ALL-OVER' can be found hidden inside 'animal lovers found'.
(Other definitions for all over that I've seen before include "covering everything" , "typically" , "Excessively attentive" , "Finished" , "very characteristically" .)