Love to slip in appreciative remark for soldiers (5,5)
I believe the answer is:
other ranks
'soldiers' is the definition.
(I've seen this before)
'love to slip in appreciative remark' is the wordplay.
'love' becomes 'o' (love means zero in tennis).
'to slip' becomes 'err' (to err is to make an error).
'in' means one lot of letters goes inside another.
'appreciative remark' becomes 'thanks' (I've seen this in another clue).
'err' placed into 'thanks' is 'therranks'.
'o'+'therranks'='OTHER RANKS'
'for' is the link.
(Other definitions for other ranks that I've seen before include "more rows" , "Non-commissioned armed forces members" , "Most of the men who fight" , "Enlisted troops" , "soldiers" .)